Problems with HDMI on TV. HDMI does not work on TV, no signal

Details Questions and answers

Many users are perplexed: why the TV does not see the HDMI connection if the cable is new, the signal source is working, and the devices were switched according to the instructions. There may be several reasons for this state of affairs, so the problem should be searched for consistently. We assume in advance that you are using an HDMI-HDMI cable without any intermediate adapters.

1. Check that the HDMI cable is working properly. Even very expensive brands are not immune to such a thing as manufacturing defects. In addition, due to careless use, the cable may be damaged. You can check the HDMI cable by replacing it with a guaranteed working analogue or by connecting it to other devices.

2. Check if you have selected the correct input source in the TV menu. To do this, press the external input selection button on your TV's remote control. Depending on the TV model, this may be a Source button, Input button, or just HDMI. When you click on it, a menu will appear with a list of available inputs. Select and confirm by pressing the Enter (OK) button the input into which you connected the HDMI cable.

3. Check whether the mode for working with an external monitor (in this case, a TV) is selected on your computer. If your TV is the only monitor connected to your computer, it should be detected automatically. In other cases, for example, a TV and a display are connected at the same time, additional settings must be made.

On the desktop, you will need to right-click on a free field of the desktop, then go to the “Screen Resolution” (for Win7) or “Graphics Characteristics” (WinXP) menu and select the screen duplication option. For laptops, there is a special function button at the top of the keyboard with an image of the monitor icon (usually F4). By pressing it several times simultaneously with the Fn button (for example, Fn + F4), we select the appropriate option for using the external TV screen.

4. Make sure that the latest versions of drivers for your video card are installed on your computer. In the computer's Device Manager, determine the version of the video card driver you are using. On the official website of the video card manufacturer, find the latest versions of drivers and, if necessary, download and install them on your computer. Sometimes problems with an HDMI connection occur due to using an outdated version of the Smart TV operating platform.

Another rather exotic reason why the TV cannot see the computer via an HDMI connection is the lack of additional power on the discrete video card used in it, and working with an external device requires increased energy costs.

I answer all questions in detail.
Friends! Everything you do on the computer, watch movies, cartoons, chat on Skype, play, view photos, slides or Internet pages in a browser, all this will be shown on the screen of your TV if the TV is connected to the computer via an HDMI cable. Nowadays, almost any TV has an HDMI input, and most produced video cards have an HDMI output.
The HDMI interface was invented in order to connect two high-tech digital devices (which are undoubtedly your computer and TV) and transfer information from device to device without loss of quality. Such transmitted information can be an image and multi-channel high-quality sound. If you have a movie or cartoon on your computer, in any HD, Blu-ray or AVI, MOV, MPG, MP4 format, then you can watch it all on your TV. There are slides or photos, please look. I’m not talking about games, because I’m not a supporter of them; they take up a lot of time from young people, which can be spent on studying. We connect the TV to the computer via HDMI with a second monitor To connect the computer to the TV we will use an HDMI cable, it looks like this and can be up to 20 meters long, choose the cable of the length you need.

For example, let’s take a Samsung TV, a not entirely new 4 series (LED type), purchased several years ago, but it already has two connectors for connecting HDMI devices.

The computer that we will use to connect to the TV was also purchased about three years ago, it has an Nvidia video card installed and also has an HDMI connector.

As I already said, our TV has two HDMI connectors. With the TV turned off, connect the HDMI cable to the HDMI 2 connector,

We connect the reverse end of the cable to the HDMI connector of the video card of the desktop computer. The computer, in turn, is already connected to the monitor (also Samsung SyncMaster 971P) with a DVI cable.

We turn on the computer and TV. There may not be an image on the TV right away, instead we see this message: “Cable not connected” “Check cable connections and source parameter” or “Weak signal or no signal”

On Samsung TVs, to display a list of all available video sources, you need to press the Source button on the remote control.

A menu appears on the TV, in this menu, using the remote control, select the HDMI 2 connector,

Now, on our TV, an exact copy of our computer’s desktop should appear. But again there is nothing, the same error appears on a black screen. So we go to the “Screen Resolution” settings. Right-click on the desktop and select “Screen Resolution”.

As we can see in the window that appears, our main screen is set to the second (2) Samsung SyncMaster 971P monitor, and in the “Multiple Screens” parameter we have set “Display desktop only on 2 monitor”, which is why the image is only present on the computer monitor screen, but it's not on the TV

We bring everything in this window to this state. Select a parameter
Multiple screens: "Duplicate these screens"
In the “Screen” parameter, “Multiple monitors” is automatically set, click Apply and OK.

The desktop of our computer appears on the TV.

The resolution of our small Samsung TV is 1366 x 768. If your computer monitor supports this resolution, then it will automatically be set to the same resolution of 1366 x 768. If not, then either the TV or monitor will have the wrong resolution. For example, my Samsung SyncMaster 971P monitor has a maximum resolution of 1280x1024. When using a TV and a computer monitor at the same time, the main thing for me is to set the resolution on the TV correctly, otherwise why would I connect it then. I set the resolution to 1366 x 768 on my Samsung TV, the image is perfect.

And on a computer monitor this resolution of 1366 x 768 looks like this.

And nothing can be done here. If you want the perfect image on your TV and computer monitor, then they must support the same screen resolution, that is, have the same characteristics. There is no sound on the TV after connecting the TV to the computer via HDMI Friends! Don't forget that the HDMI interface transmits video and sound over one cable, and we can specify in the operating system settings to use the TV's built-in speakers for sound output.
Let's fix the problem by using a TV instead of a monitor. Go to Start->Control Panel->

Hardware and Sound->Sound

If you don’t have anything in this field, right-click on an empty space and in the menu that appears, check the “Show disabled devices” items. "Show connected devices"
Now we look at the name of our TV, in my case it is Samsung, we need to turn it on and turn off the rest. Right-click on Realtek and select Disable.

We also turn off the speakers.

Samsung – Enable, Apply and OK.

In the era of high digital technology, we can get the best from the TV and computer through their connected connection. Creating such a special connection between technical devices is possible with the assistance of DVI, HDMI or VGA connectors. But, often and for various reasons, these devices do not want to make contact with each other. You can always eliminate existing problems if you know what lies at the root of their occurrence. An approximate description of common problems will help you navigate a difficult situation and open up new ways to eliminate them.

What is HDMI?

HDMI is a multimedia interface that transmits high-definition video and digital audio signals. This type of cable is widely used for connecting TVs, game consoles, stand-alone video players, as well as audio receivers to mobile devices and computer equipment. If you want to play a video or show photos on a big screen, then you can’t do without such a device.

Manufacturers of modern multimedia equipment are now adding HDMI connectors to the standard equipment of devices by default. There are five main types of such ports, which are marked with Latin letters from A to D and differ in size. In addition, each type of HDMI cable differs from the other in functionality and scope of application.

It is also worth noting that recently the possibilities and advantages of a wireless connection when connected via HDMI adapters have been widely discussed.

You see - and home theater owners should know this - every media device has a playback source menu. This is easiest to illustrate using old stereo systems. Typically they had three blocks:

Cassette decks, recording and playback.
Radio for receiving broadcasts.
Laser discs.

Moreover, they could not work on reproduction at the same time. It was necessary to switch sections using a special lever. Even modern phones often have an FM button... Haven’t figured out yet why the TV doesn’t see HDMI? Then let's move on. There are usually several output jacks on the back of the TV. Among which you can find a “tulip” of three petals, from time to time VGA, as well as HDMI. The list is usually not limited to this list; see the instructions for more details. From the remote control, you can select a source with one click of a button (with a single HDMI port) or menu. It can also be the Source key. In general, you need to find in the menu where the sources are listed and select exactly the port to which the cable is connected. And there can be 2 or more HDMI connectors, it is important not to confuse the number. (See also: Why the TV does not see the hard drive)

The computer usually does not need such tricks. And, accordingly, there is no direct option on where to transmit the signal. However:

Symptoms:

Good afternoon, Lesya

Obviously, the PC needs settings. Set the PC resolution in accordance with the values supported by the TV:
640 x 480 - 60Hz
800 x 600 - 60Hz
1024 x 768 - 60Hz
1280 x 768 - 60Hz
1280 x 1024 - 60 Hz
1360 x 768 - 60Hz
1440 x 900 - 60Hz
1680 x 1050 - 60Hz

Good afternoon, Vyacheslav.

With the laptop settings 1360*768 60Hz the image is just right.
With other resolutions that you wrote, the video will not play at all (just a black screen on the TV).

30.07.2014, 17:24

PC - Windows 7 64

01.08.2014, 12:13

The computer stopped seeing TV via HDMI

PC - Windows 7 64

Problem: Nothing was updated, nothing changed - I just stopped seeing it at one point.

What I did: roll back the system on the computer, replace drivers with old/new ones, update the TV software.

Is it possible that the HDMI ports on the video card and on the TV are burned out?

Good afternoon, WaterMan4EG

Failure of the HDMI ports of the TV is possible if the HDMI cables to them are “hot” connected/disconnected. Therefore, it is necessary to turn off the power to the TV before connecting/disconnecting HDMI cables. Try connecting another device to the TV, use a different cable if the image does not appear.

Philips TV - Victor

14.08.2014, 01:06

In TV mode via HDMI, the image is worse than on VGA. In PC mode, the image is the same as on VGA, but there are black borders at the edges of the screen, that is, autofill is disabled. Is it possible to enable autofill in PC mode or adjust the image in normal mode so that it looks like VGA?

Good afternoon

Try checking the settings of the output parameters of the video card (Resolution - 1080p, frequency - 60Hz). After this, select the “Not to scale” item using the TV format button on the remote control.

Philips TV - Victor

15.08.2014, 17:56

Nothing has changed except the monitor resolution, now 1920x1080. The stripes around the edges remain, both in PC mode and in normal mode.

Tell me, did you choose the image format “Not to scale”?

10.09.2014, 14:35

10.09.2014, 16:36

I have a 32PFL7404H/60 TV and purchased a Denon AVR-X500 AV receiver. I can’t connect via HDMI (tried different cables and all 4 inputs) or via VIDEO. It says no signal. What could be the problem and how to make them friends?

Good afternoon, Day Anger

10.09.2014, 16:47

Good afternoon, Day Anger

Check whether the image is displayed from other devices connected to the TV, is the image displayed when the receiver is connected to another TV?

12.09.2014, 17:50

If you connect the PC directly to the TV, then there is a picture; on a Samsung TV, the receiver works flawlessly.

Good afternoon, Day Anger

Check if you tried adding a device through the corresponding menu item? If yes, what device is the receiver added as?

08.11.2014, 08:10

Good afternoon, WaterMan4EG

Try connecting another device to the TV, use a different cable if the image does not appear.

16.12.2014, 18:15

And I have this problem - I had a Radeon 5770, I connected a philips 32pfl6636t/12 to it via HDMI, everything worked perfectly!!!
I bought myself a Power Color Radeon R9 270 and I can’t connect my Philips to it via HDMI, it says - Unsupported video format (((((
At the same time, Catalyst sees it!
I set it to 5770 again, it sees everything, everything works fine!
Drivers are new 14.9. I even reinstalled Windows and nothing!
Please help me, good people!!! Thanks in advance!

17.12.2014, 16:58

I tried my neighbor's computer - the effect was the same - "No video signal." Is it possible that due to a software update the TV does not detect HDMI?

Good afternoon, WaterMan4EG.

Is the image displayed from other devices? If not, then there is a possibility that the HDMI port has failed.

Yulia Orlova

22.12.2014, 23:00

Good afternoon

Good afternoon When connecting the Game Console or PC to the TV via the HDMI port (tried all 4 outputs), the screen does not display an image, it says that there is no signal, the PC at this moment sees the TV and detects it. What could be the reason?
Model 42pfl6805h.

24.12.2014, 17:45

Good afternoon

Previously, we connected our old 42PFL3312S/60 to a video card on a Radeon PC (I don’t remember which one) via DVI-HDMI. Then we changed the video card to NVIDIA Geforce 7300 GT and problems began. The computer sees the TV, and the image on the TV appears only for a couple of seconds (when loading the PC, when changing the extension on the PC, i.e. ONLY when setting up the PC on TV). Then the image on the TV disappears, the screen is blue, and the TV writes: “Video not suported.” What could be the reason?

Good afternoon, Yulia Orlova.

Set one of the following monitor parameters in your PC settings:
640 x 480, 60 Hz
800 x 600, 60 Hz
1024 x 768, 60 Hz

24.12.2014, 17:59

5. Check your computer's operating system to see if it is infected with viruses or malware. You should scan your computer with any effective antivirus program with the latest signatures.

6. Check that the HDMI ports on your TV and external signal source are working properly. Connectors may burn out or become mechanically damaged due to repeated cable misuse.

Although the HDMI standard allows for “hot plugging” of the cable, experienced specialists recommend that at the time of switching not only turn off both devices from the sockets, but also disconnect the antenna cable from the TV socket.

On LG TVs, this is the button (INPUT):

Click on it and select our HDMI connector to which we connected the cable (it will be active).

The resistance should be no more than a few ohms. It’s good if this is the case, but if it is larger or the tester does not show anything at all, and the cable is long, then you need to connect it with an additional wire.

The main reasons why the computer does not see the TV:
the connection cable is damaged, incorrectly connected or defective;
the computer does not detect the TV;
the TV does not support the selected connection method;
video card drivers or lack thereof;
damage to interface ports;
the computer has a removable video card installed;

burning of internal parts of a TV or computer.

There can be many reasons for problems in the coordinated operation of two devices. If you are not a specialist, then you can confidently diagnose only external problems associated with the cable.

Solving the problem

Knowing the causes of the main violations in the symbiosis of a computer and TV, any problem can be eliminated.

Most likely, the equipment was changed before this. For example, a new video card has been installed. Seeing this outcome, the TV might as well reset its settings. Start over with our guide above. Check the signal source, destination, etc. This applies to both audio and video.

What to do if the laptop does not see the TV via HDMI?

Most likely, you need to select the right source on your TV. Switched on devices must see each other. There is information that cables of different versions of standards are not always compatible with equipment. So with v1.3 everything worked, but with v1.4 the picture does not appear. Sometimes you need to add a second monitor manually in the video card settings, but this is more relevant to desktop computers.

How to switch? Like I said: read the instructions. One way or another, it is unlikely that it will be possible to switch the output programmatically (via the BIOS and, especially, through drivers) - most likely, this is done physically, using special devices. jumpers on your motherboard (if you are using an on-board video card), or on the video card itself.

The topic of the conversation should rather have been called “How to connect a TV to a computer via HDMI.” Most beginners do the procedure incorrectly, asking questions that are difficult for a professional to answer. Let us remind you: HDMI is a high-performance digital media content transmission interface. Images, music, other entertainment content. Will it be possible to listen to music on TV? It will be possible from a home theater, if you have one! The HDMI port was invented as a high-performance means of transmitting information. Let’s skip a few words, find out why the TV doesn’t see HDMI, and how to fix it.

Connecting a TV to a Computer HDMI

Correctly connecting the TV using HDMI

Home theater owners should know the truth - a digital media device has a playback source menu. The easiest way to illustrate the fact is with old stereo systems. Traditionally, devices had three blocks:

Cassette decks: recording, playback.
Radio broadcast reception.
Laser discs.

Moreover, the blocks refused to play melodies simultaneously. It was necessary to switch sections using a special lever. Even a modern telephone is often equipped with an FM button... Can you guess why the TV doesn’t see HDMI? Go ahead. The back of a TV typically contains half a dozen output jacks. Among the troops we will find a “tulip” formed by three petals, at times VGA puffs up, and certainly HDMI. Traditionally, the list is not limited to a meager list; see the instructions for more details. From the remote control, with the elusive press of a button (with only one HDMI port), you can select a source from the menu. The selection tool can be the Source key. You need to find a menu listing sources, select the cable connection port. There can be more than two HDMI connectors; it is important to track the correct number.

The computer usually avoids such tricks. There is no direct option to select the direction of signal transmission. However:

On laptops, the function keys Fn+F3 (F4) will open a pop-up system menu listing interesting options:

Computer only. The image will not be sent to the external monitor (TV). Most people choose the named option. Don't be surprised that the TV can't see the laptop.
Duplicate. The laptop screen will be duplicated by the TV. This is what most people need.
Expand. Some people like to drag player and browser windows onto the TV, making it more convenient to watch movies. Let's be afraid to judge (tastes are individual), select the Expand option, lengthening the desktop.
Projector only. The laptop screen turns off. The image will be displayed individually on the TV.

Desktop personal computers detect TV independently. Otherwise, take the trouble to visit the driver menu and select the required broadcast port.

It is easier to control a connected TV using the desktop context menu. First, right-click on the free space, select the Screen Resolution option. Successful TV detection makes the “Multiple Monitors” button available. You will see four options that are exactly the same as the laptop options. Read the values above. It happens that the computer does not see the TV via HDMI: it makes sense to look here and look at the context menu. The monitors will be numbered; you can swap ports by simply clicking and selecting the object for changing system parameters.

There is no “Multiple Monitors” button in case of inconsistency: the system does not see the TV. Both devices must be turned on (230 volt power supply).

We connect the TV and computer with a cable

Pros say: it is possible to hot-connect a TV and computer via HDMI. Avoid risking expensive equipment; perform procedures in the absence of power. The first thing you need to do is turn on the TV. In normal mode, devices see each other. Problems mean there is a breakdown. Is hot plugging possible or not?

Here is the Wikipedia page http://en.wikipedia.org/wiki/HDMI, in the characteristics of the standard there is the phrase Hot Pluggable: Yes. Translating into Russian, we see the docking of the connectors with the power on. Want to play it safe? Russia is a place where dealers and manufacturers comply with regulations selectively. It's a pity for the equipment - play it safe.

Which end should you start connecting the cable to? No difference.

Sound. Connecting a TV to a Computer HDMI

Since its creation by the committee (2002), the HDMI interface has been conceived as a combined solution for transmitting image and sound. See the available audio formats individually (Wikipedia page), we only note that in Windows you need to select the sound source. Now the TV is considered a system device, so these responsibilities can be assigned to it. To do this, the easiest way is to right-click the lower right corner of the desktop (speaker icon) and select Playback Devices from the context menu. If there is no icon in the lower right corner, you need to click the arrow to the right of the language selection symbol RU (EN), to the left of the clock. The symbol will be there. You will find it.

After clicking, a window will open: playback devices will be listed. You need to turn off everything except the TV, and turn it on – the TV – on the contrary. In 90% of cases, after a couple of seconds the native speakers of the plasma panel will start screaming. Do we want Sound Around? Typically, such a speaker system comes with a home theater. Look through the device description. There are several ways to transfer sound from a TV to a home theater, any will do, taking into account the need to purchase the required cable. Similarly, using the Source button on the home theater control panel, select the desired sound source.

On the TV side, the procedure is often transparent, and the device’s own speakers are turned off. Then don't worry if the movie soundtrack is recorded in mono. Every self-respecting home theater has a splitter inside that can easily split the sound into channels in the Sound Around format.

FAQ: Connecting a TV to a Computer HDMI

The TV does not see the HDMI cable. What to do?

We would venture a guess: the TV playback source is incorrectly specified. Check that the computer's Target signal is correct. For TV, use the remote control. Using the menu or the Source or Hdmi keys, ensure that the source exactly matches the socket where the wire is inserted. For example, if this is HDMI 3, then you need to put HDMI 3 in the menu. On the laptop side, use the function key Fn+F3 or F4 (it varies on different models) to select Duplication mode.

PC connection

Get comfortable first, then change as you see fit. A similar action is performed on a desktop computer, through the desktop context menu (the “Change resolution” column), both devices must be turned on.

There is no sound on the TV through the HDMI cable, but there is an image, what should I do?

The audio stream output device of the personal computer is set incorrectly. Click the speaker icon (bottom right of the screen). Fix the problem by clicking Playback Devices. In the window that opens, turn off playback devices, excluding TV speakers. If necessary, also make the instance active (the line will turn green).

The TV stopped seeing HDMI.

We would venture to guess that the breakdown was preceded by a change of equipment. A new video card has been installed. Seeing this outcome, the TV could reset its settings. Start over. The guidelines are provided above. Check the signal source and destination. Any parameters related to sound, image.

The laptop does not see the TV via HDMI.

You need to choose the right TV signal output source. Switched on devices must see each other. There is information that cables of different versions of standards are incompatible with equipment. If v1.3 was present, the equipment worked; replacing v1.4 caused the picture to disappear. Sometimes setting up a video card requires adding a second monitor manually. Relevant for desktop computers.

You see: there are few reasons (the TV does not see HDMI). Mainly setting up equipment. Experts recommend installing new TV firmware, then turning off the device, pause for 5 minutes. You can reboot the product manually (the menu will help), for each model the exact sequence of actions will be different: LG, Sony, Samsung - the device demonstrates its features. Proceed according to the instructions. Farewell advice. Be sure to try the TV ports one by one, changing the image source through the menu. There were cases where out of four HDMI sockets, the only one that worked, for example, the fourth one. If we watch films, it makes no difference, number 1, 2, 3...

Readers should understand that the Windows operating system is not perfect. To make the equipment work, you have to reboot the devices several times. It happens that pros ask why digital technology failed? Well done shrugs his shoulders, says Windows – Must Die, Linux – well done. It’s difficult to say what the phrase means, but for some reason the problems on the forums relate specifically to the paid operating system, and not to the freely distributed one. We want to say goodbye, because we have solved the problem. We see no point in discussing further.

Connecting a computer or laptop to TV can occur in different ways:

VGA or D-Sud cable. Almost all monitors, PCs and TVs have this connector. This is an analog connection, which does not best convey all the nuances of video files.
DVI. A more modern option. Can work with analog and digital devices. Has its own subclasses.
S-Video. In addition, you will have to purchase an adapter.
RCA or tulips. Connecting a laptop and TV using this method is rare.
Scart. A popular method, since such a connector is found in modern TV models.
HDMI cable. A good option for connecting a computer.

Common Causes of Connection Failure

If the TV does not see the laptop, but the connection is complete, then the reasons may be the following:

The cable is not connected correctly or is defective.
Monitor settings error.
Incorrect operation of the laptop or PC video card.
The settings on the TV itself or any other brand are not configured.

Let's look in more detail at why the TV does not see HDMI and the second device through it.

Equipment testing steps

First of all, you need to check the quality of the wire connections and the condition of the connectors.
Next, you need to check that the computer settings are correct.
Then it checks for driver updates and video card settings.
Run an antivirus program to scan for malware.
Checking the port. It is recommended to connect to another device.

Cable check

If the TV connected to the PC suddenly stops working, and until that moment everything was set up properly, it means that the cable has come loose or has been broken. The first option is more common, since you can hook the adapter simply by passing by. But the second one is less common, since the optimal length of the HDMI cable is not so long as to lie on the floor and get under someone’s heavy foot.

TV settings

When the TV does not see the laptop via HDMI immediately after connecting the equipment, most likely it is incorrect to select the signal source on the TV itself.

If there is no signal from the computer, then on the TV remote you should find the “input”, “source” or “Imput” button; it may be written “HDMI” right away on the LG TV. Go to the window that opens and there, in the list of active inputs, select the one you need. Confirm the action by clicking on “OK”.

If the equipment still does not connect after the operations performed, we carry out further diagnostics.

Monitor settings

Having made sure that the signal from the TV is going along the right path, we move on to diagnosing the laptop or PC screen, or rather, to the settings. They can be carried out by any user with basic knowledge of their computer:

Hover your mouse over any free space on the screen and click on the right button.
In the list that appears, select “Screen resolution” or “Graphics characteristics” depending on the type of OS.
Select the appropriate option for displaying the picture on TV. The device passport specifies the acceptable resolution, stick to it.

It's easier to do everything on a laptop. Press and hold the “Fm” and F4 buttons simultaneously until the optimal option is selected. After this, the laptop will connect to the TV correctly and the error that there is no image will go away.

Video card error

Another reason why the connection of devices does not work is the incorrect functioning of the PC video card. In this case, the laptop does not see the other device or does not display an image on it.

To fix this, you need to try installing new drivers that are available on the global network for each device model. Sometimes a complete reinstallation or replacement of an element may be necessary.

Having an LCD TV or plasma panel, you've probably wondered how to connect your TV to your computer via HDMI. At first glance, this is easy to do, but nevertheless, people often have questions, and the connection itself causes difficulties. In this material we will tell you step by step how to do everything right.

What cables are needed?

It should be borne in mind that the use of expensive HDMI cables is not at all necessary and the most common one will do for us. But please note that if you are the happy owner of a TV that supports 3D mode and plan to watch the corresponding content, you will need a cable that supports HDMI version no lower than 1.4.

Connection step by step

So, first, let's find the HDMI connector on your TV. It is located either on the side or back wall, and looks like in the picture below:

If your TV has more than one HDMI connector, then we are interested in the one located in the “Input” section and marked with the number “1”.

We are looking for the same connector on the back of your computer. It is usually located among the video card connectors. If your computer has a built-in video chip, then the HDMI connector we need will be located on the motherboard connector strip.

IMPORTANT: do not mix up or connect the cable to the “Output” connector, this may cause it to break or burn. Carry out all work only with the computer and TV turned off, with the power cables unplugged from the socket!

Sometimes it happens that a computer or TV does not have an HDMI connector. In this case, you can use a DVI to HDMI adapter to connect the TV to the computer, but with such a connection you will have to supply sound separately and a description of this method is beyond the scope of this article.

So, insert one end of the cable into the TV connector, the other into the computer connector. We check that they both fit tightly and are inserted all the way.

The first step has been taken, let's move on to further actions.

Setting image output via HDMI

We turn on the TV and computer.

After loading Windows, right-click on the desktop and select “Screen Resolution” from the context menu list. Windows defaults to the maximum supported resolution, but you need to check if it is set correctly.

For example, if your TV is “Full HD”, then 1920x1080 will be optimal for it. If the TV is “HD Ready”, then it has a resolution of 1366x768. Thus, by connecting the TV to the computer via HDMI, we can separately and independently configure the parameters of the TV and monitor. By selecting “Duplicate these screens”, you clone the monitor image onto the TV and thereby make it identical. If you select “Extend these screens”, making the monitor the main one, then you extend the desktop to the TV, as shown in the picture. The display method you choose to use on your TV depends on your preferences.

Next, click on “Advanced options” and set the screen refresh rate. Note that if you connect your TV to your computer via HDMI, it may appear under a different name, such as "Universal PnP Monitor." This is okay because Windows considers all connected display devices to be monitors. Select your TV and set “True Color (32 bit)” in the “Color quality” field, and set at least 60 Hz in the “Screen refresh rate” field. You can experiment with this parameter in the future if the image displayed on the TV shows artifacts or “gaps” in a dynamic picture. In this case, it would be better to specify 60Hz, but if your TV initially supports 100Hz, then it is better to immediately set the same amount, without experimentation.

After the image is set up, we move on to setting up the sound.

Outputting sound to TV via HDMI

First of all, make sure that you have the latest video card driver installed, containing all the necessary components to output audio from your computer to your TV via HDMI. The easiest way to check this is by clicking on the speaker icon next to the clock in the taskbar. If you see another one next to the speaker volume slider, called something like “HDMI Digital Audio Device,” then everything is fine.

Otherwise, go to “Device Manager” (Start -> Control Panel -> All Items -> Device Manager) and select “Sound, game and video devices”. This item should contain a device with the same name as the one highlighted in the figure. If it is missing, then you will have to reinstall or update the video card driver.

In this case, a situation may arise when you have everything connected and configured correctly, but there is still no sound. This is due to the fact that not all TV models from different manufacturers support audio reception on all input connectors. In this case, you can try connecting the cable to the adjacent HDMI connector of the TV, but in compliance with the safety requirements specified at the beginning of the article.

Common connection problems

Why can't my TV see my computer via HDMI?

Possible causes and solutions:

The HDMI cable is faulty. The cable needs to be replaced.
The input source is incorrectly selected. Check the TV menu to see if the correct input is selected. For example, you connected the cable to the “HDMI-1” connector, and “HDMI-2” or “Component” was selected.
Faulty or damaged HDMI input. You need to contact a service center or a teleworker.

Why doesn't my computer see the HDMI cable from my TV?

We hope this article was useful to you and helped you resolve the issue of how to connect your TV to your computer via HDMI.

In some cases, after connecting the TV to a computer or laptop via an HDMI cable, the image simply does not appear on the TV. It’s rare, but it also happens that there is sound via HDMI, but there is no image on the TV. Although, it seems to me that most often they encounter the opposite problem, when .

In this article, we will try to deal exclusively with the problem of image output via an HDMI cable. It seems that everything is simple, we connect the TV to the computer, select the desired input on the TV, and if necessary, then on the computer we also select the required picture output mode. And according to the idea, everything should already be working. But instead we see the message “No signal” on the TV.

Before we jump into any tips, check out the instructions for connecting your TV to your computer via HDMI:

And another one . Using the example of a Philips TV and Windows 10.

If you do everything according to the instructions, but there is no result, and the image still does not appear on the TV, then now we will figure it out.

There is no signal on the TV via HDMI and there is no image

1 The first thing you need to do is check cable connection, and remember the HDMI input number on the TV to which the cable is connected. Check if the cable is properly inserted into the output on your laptop or desktop computer. Then, check the cable connection on your TV, and be sure to look at which HDMI input you connected the cable to. They are signed. It looks like this:

For example, I connected the cable to HDMI input number 3. The fact is that the TV most likely has several inputs. And in the settings we will need to select the one to which we connected the cable.

2 Check the settings on the TV. Select the appropriate HDMI input in the settings. Not always, after connecting the cable, the image from the computer immediately appears on the TV. Most likely, you will see the message “No signal” or “Cable not connected”. There should be a button on your TV remote control that opens a menu with a choice of signal source. On Philips TVs, for example, this button is labeled as SOURCES. Click on it and select the HDMI input with the desired number from the list.

On LG TVs, this is a button INPUT. Click on it and select the required source. On new LG TVs on Web OS, they may have already done it differently. But, the scheme is always the same, on any TV (Samsung, SONY, LG): open the menu with the selection of the signal source, and select the HDMI input with the desired number (to which the cable is connected).

3 Check the settings on the computer. Your computer may not be able to output images to the projector. (TV, monitor), so the picture does not appear on the TV and there is no signal. It's very easy to check. In Windows 10, Windows 8 and Windows 10, just press the keyboard shortcut Win+P, and select one of three image output options: Duplicate, Extend, Projector only.

If you select "Disable projector", then the image via HDMI will not be output. In Windows 10, everything is approximately the same, only there a menu appears on the side of the screen.

4 If you still haven’t managed to connect your computer with your TV, then it would be good to find out what the reason is: the TV, the computer, or the cable. It's not difficult to do. Especially if you have another PC, TV, monitor with an HDMI input, or another cable.

Try connecting your laptop to another TV or monitor, for example. If everything works, then the problem is in your TV (which is unlikely). This will eliminate problems with the cable. You can also just take another laptop (even borrow from a neighbor) and connect it to a TV that does not display an image. If everything works, then the problem is in your laptop (computer). Which is what happens most often.

5 One more piece of advice. Try updating the video card driver with a TV connected via HDMI. Just download the driver from the laptop/video card manufacturer's website and install it.

What should I do if my computer does not output images via HDMI to my TV?

When we have determined that the problem is in the computer or laptop.

Our video card displays the image, and we actually connect to it. So that might be the problem. Yes, perhaps something burned there, etc. But, as a rule, the problem is of a software nature. Something is wrong with the video card driver, or with the settings, so the image does not come through HDMI.

Therefore, first of all, I advise you to update the video adapter driver. If you have a laptop, then go to the manufacturer’s official website, find your model through the search, select the operating system you have installed, and download the VGA driver. Then, run its installation.

If your laptop has two video adapters, update the drivers for both. Maybe for example nVidia Graphics Driver, and Intel Graphics Driver like on my ASUS laptop.

And if you have a desktop computer, then download the driver from the video card manufacturer’s website. You can see which video card is installed in the device manager, or in the characteristics of the system unit.

If you somehow managed to solve the problem with displaying images on a TV using an HDMI cable, then share your advice in the comments. I will be grateful.

A pressing problem for many users today is expanding the image from a personal computer to a home plasma display. “We connect the TV to the computer via HDMI, but there is no image,” - this is exactly how negative sounds come from the mouths of computer equipment owners.

In this article, the reader will become acquainted not only with the method of connecting an additional display to a PC or laptop, but will also learn about the correct equipment settings. He will also be interested in recommendations from experts in the field of IT technologies.

About the goals pursued

The larger the diagonal of the LCD screen, the more comfortable it is to view multimedia and the better the image detail in games and software. A film on a TV from a computer will allow you to see the smallest details, and a fan of a dynamic toy will feel the reality of the events taking place on the plasma screen. In fact, there are many advantages of using such a symbiosis, and all of them relate to the comfortable work or leisure of the user.

In recent years, many users have become interested in Internet television. Why pay money to the provider if you can watch your favorite channels for free from the official website of the television company? Therefore, the question is: “How to connect a computer to a TV?” sounds more and more often in the media. But so far things are going badly with ready-made solutions.

Computer hardware capabilities

It’s better to start with the technical capabilities of a personal computer or laptop. The fact is that it is not enough to buy an HDMI cable for your computer. It will be possible to connect to the TV only if there is an appropriate digital video output on the PC. Therefore, the user needs to familiarize himself with all the outputs of the system unit and find the desired port. It can be located on the video card or on the motherboard of the computer and on one of the ends of the mobile laptop.

There are devices that do not have an HDMI connector. It is quite possible to find VGA (D-Sub) video output or DVI digital ports with DisplayPort on old ones. Here everything depends to a large extent on the TV, which should have similar inputs. Having selected the right cable for your TV, you will always find the opportunity to output an image from your computer.

TV availability

But modern liquid crystal devices with HDMI ports have no problems - all manufacturers provide their equipment with a popular interface. Often they are not limited to one port at the factory and provide the user with the opportunity to connect several sources to output images via HDMI.

Larger LCD displays have a slightly different problem. We are talking about the resolution of the reproduced image and the frame rate. Before connecting a computer and a TV via HDMI, the user needs to familiarize themselves with the technical characteristics of both devices, compare their video signal transmission capabilities and find a parameter that will be supported by both the plasma and the PC. Often, all equipment manufacturers strive to ensure that equipment supports FullHD resolution (1920x1080) at a frequency of 60 Hz. True, there are exceptions that create problems for users.

Operation of devices of different generations

In situations involving connecting two devices with different interfaces (HDMI, VGA), users are often surprised why the computer does not see the TV via HDMI. The explanation is simple - it is impossible to connect equipment of different generations by combining analog and digital signals with one cable. In such situations, no adapter will solve the problem - you need a converter that can decode the signal at the hardware level.

Fortunately, foreign auctions offer ready-made solutions that can solve all users’ problems with video signal transmission between devices of different generations. The cost of one converter is in the range of 20-30 USD. That is, which attracts a potential buyer. All the necessary cables for video transmission are always included with the converter, so the algorithm for solving the problem is simple: buy a converter and connect the TV to the computer via HDMI.

When the required interface is not available

Not all computers and TVs have an HDMI port - that's a fact. But you shouldn’t get upset ahead of time, since with obsolete devices the problem can always be solved. The fact is that old equipment is focused on transmitting an analog signal. Although this technology lags behind in terms of image quality, it has an order of magnitude fewer problems with the compatibility of different standards. Combining S-Vidio, VGA or RCA interfaces is much easier than converting to digital.

The user just needs to buy a cable for the TV and connect both devices. There are also many inconveniences that users will have to face. Firstly, audio cannot be transmitted over an interface cable. Accordingly, you need to buy another cable. Secondly, during operation, the sound card of a computer or laptop will not be able to create an individual audio stream for the TV. Accordingly, you can forget about the convenience of sharing a computer and TV.

The right approach to buying a cable

Problems may also arise for the user when choosing the wrong HDMI cable. The fact is that a digital video signal is not capable of being transmitted over long distances via cable without loss of quality. Therefore, the future owner needs to decide on the length before buying an HDMI cable for a computer to a TV.

The main thing is to always remember that the longer the quality cable, the higher its cost. It is necessary to measure the distance between the PC and the liquid crystal display (of course, not in line of sight, but taking into account the installation) and find a cable of the appropriate length on the market. Yes, it is customary for buyers to purchase wires with a reserve, but it should be small, since often the excess is rarely in demand - more often they just collect dust behind the TV or behind the computer. The main thing here is to find a middle ground in terms of the “cost - cable length” ratio.

Real offers from manufacturers

It is not easy to choose a cable for a TV of the HDMI-HDMI form factor on the market. Any buyer can verify this for himself; just look at the prices and assortment. It is logical to assume that expensive accessories have a high price only because they are made by serious brands. There is truth to this, but as a rule of thumb, the more expensive the HDMI cable, the less likely it is that the video signal will deteriorate over a long distance. In fact, you have to pay for quality. Chinese consumer goods have no place in the domestic market.

IT experts recommend paying attention to the brand name (for example, Prolink, Cablexpert, Viewcon, Belkin), as well as focusing on the quality of the winding and the presence of ferrite filters near the connectors (barrels near the contacts). If an HDMI cable is required, the length of which exceeds 30 meters, then the user cannot do without a signal amplifier. The device is expensive, but copes with the assigned tasks 100%.

Physical connection of two devices

This article is not about potential difference from a school physics course, but the user still needs to know that there is a small electrical charge on the video ports when the equipment is plugged into the mains. Naturally, when connecting two devices, equipment with a large charge will transfer energy through the cable to the port of the connected device. Often the TV turns out to be more powerful, which, when connected, burns the output on the computer’s video card. Therefore, before connecting your computer to the TV via HDMI, you need to turn off the power to one of the devices (unplug the plug from the socket). Naturally, this problem avoids all users who have grounding in their home.

Another problem that the buyer may encounter is the lack of a video signal when connecting the cable or the transmission of an image with noise. There is no need to touch the settings of your TV or computer - 99% of the time the problem is a low-quality cable. It needs to be replaced. In general, experts recommend checking the HDMI cable directly in the store to avoid connection problems.

TV settings

It will not be difficult for the owner of the liquid crystal display to press the “Source” button on the device’s remote control and select the desired signal source. All ports on the TV panel are registered and numbered, so all that remains is to combine the software part with the hardware part. Don't expect the PC image to appear on the screen right away. The main thing here is to get the display ready to receive a video signal. This completes the setup of connecting the TV to the computer via HDMI. All that remains is to configure the video output of your PC or laptop.

Many users are owners of home theaters and other video and audio equipment that is connected to an LCD TV. Naturally, a situation may arise when all HDMI ports are busy. Many users are unlikely to want to physically rearrange the HDMI cable when working with a computer, so another solution is proposed. The video signal from the laptop can be transmitted to a tuner or receiver. In fact, there is no difference, since manufacturers use a single standard for transmitting images via HDMI.

Modern platforms

When it comes to the Windows 10 or MacOS operating systems, there are practically no configuration issues. The user only needs to restart the computer for the device to detect and connect the new display. The more modern the equipment, the more efficient the automatic tuning is - often via HDMI the signal is transmitted from the computer to the TV in FullHD format with a frequency of 60-65 Hz.

But there are exceptions, and they are primarily related to the video device driver. Therefore, there is no need to try to make the TV work correctly from the remote control; only fine-tuning the video card will help here. The main thing is to always remember that you need to change the parameters not global, but just one port, otherwise, through negligence, you can destroy the signal to the PC monitor, which will be very difficult to restore.

Working with drivers

Making a TV work like a computer monitor via HDMI, although difficult, is quite possible. There are many ways to do this, which the reader will get to know. Owners of the Windows operating system versions 7,8 and 10 need to go to the control panel and select “Screen”.

By going to the “Setting screen parameters” tab, the user will find that the operating system has already detected the connected TV, but is not yet transmitting the image to it. The Multiple Displays option allows you to connect your TV as an additional monitor to your computer. The list contains several options from which the user is asked to make a choice:

Duplicate these screens. The contents of the computer desktop will be displayed on the TV screen, and all actions performed by the user will be visible on both displays.
Expand these screens. The most interesting setting that allows you to virtually increase the desktop area (both vertically and horizontally).
Show on screen no. Manually assigning a port for video output is not popular among users.

Driver configuration features

It's easy to send a signal to a TV, but adjusting the picture quality and transferring sound from a computer to a TV is not so easy. First, you need to decide on the extension of the desktop - diagonally or vertically. Experts recommend focusing on the physical location of the TV in the room relative to the PC monitor. On the control panel, in the “Screen Resolution” menu, you need to use the mouse to place icon No. 2 relative to icon No. 1 so that it is convenient to move desktop objects between displays.

The second step is to adjust the TV screen resolution. The main thing here is to select a parameter that is supported by the connected display, otherwise a failure will occur and the video output port will be disabled. By clicking the "Advanced Settings" button, the user can select the display refresh rate, however, IT experts do not recommend changing the frequency unless the video card and TV support the 4K (144 Hz) standard. After making all the settings, you need to save the changes and exit the control panel.

Tricks with sound transmission

All users know that an HDMI cable transmits not only high-quality images, but also sound, but there is no corresponding setting in the display resolution settings. With audio transmission, everything is simple - at the hardware level, the sound is sent to an additional screen along with the video. That is, the user just needs to move the video player window onto the TV display with the mouse. The sound will be muted in the computer speakers, but the sound will be activated in the TV speakers.

It is worth noting that a mobile device or computer is capable at the hardware level of supporting several video devices connected via HDMI, transmitting different images to them and providing them with sound. True, there are exceptions, and they depend on the video adapter and sound card. Low-performance devices sometimes malfunction; they simply do not have enough power to process digital video signals and high-quality audio.

Alternative driver setup

Not only Windows tools can configure video transmission to the TV screen. Owners are given the opportunity to ensure high-quality transmission using a video adapter driver (Nvidia or Radeon). The setup algorithm is still the same: we connect the TV to the computer via HDMI and set the HDMI signal source from the remote control.

But then the proprietary software of the video card manufacturer is used. Going to the control panel of the Nvidia Geforce Experience or AMD Catalyst Control Center application, you need to find the “Display” tab. One of the sub-items of this menu is responsible for setting up multiple displays.

Feedback from users

Often, when connecting a TV to a computer or laptop, device owners encounter problems that they try to solve together in the media. Most of the negativity that is found in reviews is associated with low-quality HDMI cables that were purchased at foreign auctions or in stores at a low price. A greedy person pays twice - all users who decide to save on buying an HDMI cable need to know about this.

After adjusting display settings and saving, did the image on the main monitor disappear? This is the second problem that users often have to face. The reason is quite simple - the parameters of the main monitor have undergone changes. There is only one recommendation here - when connecting a TV to a computer, you need to control your actions. Number 1 in the system is always the main monitor - its settings cannot be changed. You can do whatever you want with the remaining numbers (2,3,4).

Finally

Yes, in order to create convenience for yourself, the user needs a little time and investment. You simply cannot do without this. There are instructions that spell out all the steps, they need to be followed clearly:

buy an HDMI cable;
configure the video adapter driver;
enjoy watching.

The algorithm is simple, but there is a lot of work to be done. In fact, there is nothing complicated, the main thing is to follow the recommendations of experts and carry out strictly specified actions. Only after receiving an image from a computer or laptop on the TV screen and making sure that there is sound transmission, you can go into additional parameters and make fine adjustments.

Today, you can connect a computer or laptop to almost any TV. This allows you to watch movies, photos, play on the big screen, and also solve many other tasks. From time to time, users are faced with the fact that the computer does not see the TV via HDMI. In most cases, you can fix this problem yourself, but sometimes the equipment has to be sent in for repair due to a damaged connector. All ways to fix the problem with your own hands are further in the material.

Features of HDMI connection and causes of problems

HDMI (High-Definition Multimedia Interface) is a modern interface for transmitting video and audio signals. Almost all modern equipment today is equipped with such connectors.

Unlike cables that transmit an analog signal, HDMI is designed to broadcast content in digital format with Full HD and 4K resolution. These are the highest quality methods of transmitting information today, which are not possible through VGA, RCA, component cable or other types of connection. Since its release in 2002, the HDMI standard has constantly changed, increasing cable bandwidth, adding support for new formats, as well as additional useful features.

On a note! In HDMI 1.4 and subsequent versions, support for 3D, 4K and Internet signal transmission was implemented. This method of connecting to the Internet is faster than a Wi-Fi connection, as well as stable and reliable.

Most common 3 HDMI form factors: Type A (HDMI), Type C (mini HDMI) and Type D (micro HDMI). The second and third types are intended for smartphones, digital photo and video cameras, as well as other mobile and portable equipment.

When connecting a computer or laptop to a TV via HDMI, the user may experience that the image is not displayed on the screen. There can be many reasons for this, but the most common are:

faulty cable;
broken connector;
broken TV or monitor settings;
outdated graphics adapter drivers;
the presence of viruses on a PC or laptop.

To identify the cause of the malfunction and fix the problem, the user will need to diagnose the equipment and cable.

Diagnosis and troubleshooting

A consistent check of all possible causes of the malfunction will help you understand the situation when a computer or laptop does not transmit an image to the screen of the television panel. Diagnostics should begin from checking the cable, then the connector, then go to the equipment settings etc.

Cable problem

If there is no signal when connecting your PC to your TV, the first thing you need to pay attention to is the condition of the cable, especially if it has just been purchased and has not been tested. It’s easy to make sure it’s working – you just need to try connecting a different cable or test the existing one on other equipment. If it functions properly, you need to look for the problem in the television panel or in the computer.

Connector problem

If the cable is working, but there is still no image on the TV screen, you need to check the integrity of the connectors. Perhaps they were damaged or stopped working due to a power surge.

Advice! Typically, modern TVs, whether LG, Sony, or another manufacturer, have several HDMI inputs. Therefore, you can diagnose the connector by switching the cable to any adjacent port, but you must remember to select the appropriate input on the television panel using the remote control.

If nothing still works, you need to check Is the connector on the system unit or laptop working?. There are two options:

if your computer has a DVI output, you can use a DVI-HDMI adapter and connect your equipment;
Disconnect the same cable from the PC and connect it to another device with an HDMI connector, for example, a DVD player.

If, after checking using one of the above methods, a picture appears on the screen, it means that the connector on the PC or laptop is broken.

TV settings

If checking the cable and connectors has ruled out their malfunction, then you need to make sure that the TV is configured correctly and the signal source is set correctly. To do this, you need to look at the connector to which the cable is connected - usually its name and number are indicated next to it, if there are several identical inputs. Then, on the remote control or control panel on the TV body, you need to press the “Input” or “Source” button (the designation may differ depending on the brand of television equipment) and make sure that no error has occurred, and the exact connector to which it is connected is selected as the signal source cable.

Monitor settings

If the connection is made to a computer together with a monitor, and after turning on the equipment, the TV does not show anything or displays a poor image, you will need to make a number of changes in the settings on the PC. So, in Windows 7, the user needs to right-click on the desktop, call up the context menu and select "Screen Resolution".

On a note! For other operating systems, the required section will be called differently: “Graphics characteristics” - for Windows XP, “Display settings” - for Windows 8, 8.1 and 10.

Next, you need to select the appropriate option for displaying the image on the second screen. To do this, you need to refer to the “Multiple Screens” (Displays) section. If there is no image on the TV, then most likely only the monitor screen is selected in the specified section. To display a picture on the TV panel display, you need to install duplication or repetition(the two screens will have the same image), extension(in this case the second screen becomes a continuation of the first), or using only the second screen. The last option assumes that the picture will disappear from the monitor display and will be displayed only on the television receiver.

Advice! For Windows 7, 8, 8.1 and 10, there is another way to change the screen mode - you need to simultaneously press the Fn key (with the Windows brand icon) and the P key. The “Project” menu will appear on the right, in which the user can select one of four possible modes display the picture.

Usually, the resolution is automatically adjusted on the connected screen, but if this does not happen, and the picture quality does not suit the user, you must go back to “Screen Resolution” (or another section corresponding to the installed OS) and set the resolution value that matches the TV settings. In this case, the image on the monitor screen will deteriorate. You can get a high-quality picture on two devices only if the display and panel have the same resolution.

Outdated video card drivers from nVidia, AMD or other companies may also be the reason why the PC does not connect to the TV. To eliminate it, the user needs open Device Manager, find the video card and see the version of the installed driver. Next, you should go to the manufacturer’s official website and download the latest version of drivers for the graphics adapter.

Setting up the sound

If, when you connect a laptop or computer to a TV receiver, the image on the big screen is broadcast, but there is no sound, you need to make changes in the PC settings. To do this, the user should go to “Hardware and Sounds” in the “Control Panel”, and then go to the “Sound” tab ( for Windows 10 – “Control Panel” - “Sound”).

Advice! You can also open the desired section by clicking on the speaker icon in the tray (lower right corner of the screen), calling up the context menu and selecting “Sounds”.

The “Playback” tab displays all devices connected to the computer for sound output, including TV speakers. If there are no devices in this section, you need to right-click on any free area and assign display of connected and disconnected devices by checking the boxes next to the corresponding lines.

After all connected devices have appeared in the “Playback” tab, you need to find the name of the TV, click on it and select "Enable". On the rest of the connected equipment you will need to perform the same steps, but click on “Disconnect”. Use the “Apply” button to confirm your choice, after which sound should appear in the TV speakers.

Viruses on PC

In very rare cases, viruses or malware prevent the computer from displaying images on the TV screen. However, this possibility should not be excluded, especially if the most likely causes of the malfunction have been rechecked, but there is no result. To check this version you need to download and install any of the paid or free antiviruses or use healing utilities. The advantage of the latter is that they usually do not require installation and can be launched from a USB drive.

The most popular and effective utilities include Kaspersky Virus Removal Tool and Dr. Web Curelt! Once the scan is complete and threats have been removed, you will need to to restart a computer for the changes to take effect. After turning on the devices, you will need to check again whether the signal is being received from the computer to the TV via the HDMI cable.

Checking for signal presence

If the TV receiver has stopped seeing the computer and as a result does not display an image on the screen, you need to check the signal by doing the following in turn:

inspect the equipment, determine the connectors and type of cable through which the connection will be made;
disconnect the TV and computer (laptop) from the network;
connect both devices with a proven HDMI cable;
turn on the television panel, use the remote control to select the connector to which the cable is connected;
turn on the laptop - if there is a signal, an image will appear on the television panel;
if there is no signal, you need to open Device Manager on your PC and see what active connections the computer sees;
If the device detects a connection via an HDMI cable, but there is no image on the screen, you need to connect the equipment with a VGA or DVI cable and select the appropriate input on the TV.

If the image does not appear on the television panel, you should contact a service center, as this indicates an internal failure of the TV.

There are several rules and nuances when connecting equipment via HDMI.

Experienced specialists advise connect equipment with an HDMI cable in the off state. According to them, even the television cable should be temporarily disconnected from the antenna socket.
External inspection of the cable implies checking for broken, rusted, oxidized contacts, fractures, kinks wires, presence of dust or debris inside. The connectors should also be free of broken contacts and dirt, and the port itself should not be loose. All these disturbances affect the operation of the cable and interfere with signal transmission.
When updating video card drivers, you should download the current version from the official page manufacturer. Only in this case is the installation of the latest working version of drivers guaranteed.
To connect your TV to your computer, you should purchase good quality HDMI cable. Cheap wires significantly degrade the signal quality and are not reliable and stable.

So, if when you connect a PC to a TV via HDMI, no image is displayed on the panel screen, there may be many reasons for this. Some of them are associated with the user’s banal inattention and can be eliminated immediately on their own. Sometimes the situation is much more serious and requires replacing the cable. In rare cases, you will have to take one of the devices in for repair. To find out which option led to the absence of a picture on the television panel screen, it is necessary to conduct a thorough diagnosis of the connection and technology. This will allow you to understand what to do next to fix the problem.