TV does not see pc via HDMI

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Connector problem

If the cable is working properly, but there is still no image on the TV receiver screen, you need to check the integrity of the connectors. They may have been damaged or stopped working as a result of a power surge.

Advice! Typically, modern TVs, whether it be LG, Sony or another manufacturer’s product, have multiple HDMI inputs. Therefore, you can diagnose the connector by switching the cable to any adjacent port, but you must remember to select the corresponding input on the TV panel using the remote control.

does, hdmi

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

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

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

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

In the era of high digital technologies, we can get the best from TV and computer through their connected connection. The creation of 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 fix 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.

Turn on the devices

The TV can always be transformed into a powerful multimedia platform if all devices are turned on in the correct sequence.

The connection algorithm is as follows:

  • initially you need to disconnect the computer and TV from the network;
  • turn off the antenna and other peripheral devices of the TV;

The sequence of operations should never be changed. After connecting the devices, you need to configure them.

Why can’t my computer see my TV via HDMI cable

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 PC does not see the TV via HDMI. In most cases, you can fix this problem yourself, but sometimes the technician has to be handed over for repairs due to a damaged connector. All the ways to fix the problem with your own hands. further in the material.

Sound. Connecting a TV to a Computer HDMI

From the very moment of its creation by the committee (2002), the HDMI interface was conceived as a combined solution for image and sound transmission. See available audio formats individually (Wikipedia page), just note that in Windows you need to select a sound source. Now the TV is considered a system device, so these responsibilities can be assigned to it. To do this, it is easier to right-click the lower right corner of the desktop (speaker icon) with the right mouse button and select Playback Devices from the context menu. If there is no icon in the lower right corner, you need to press the arrow to the right of the RU (EN) language selection designation, to the left of the clock. There you will find the symbol.

After clicking, a window will open: playback devices will be listed. You will need to turn off everything except the TV, and, on the contrary, use the TV. In 90% of cases, the native speakers of the plasma panel will sound in a couple of seconds. Want Sound Around? A similar speaker system comes with a home theater system. Flip through the description of the device. There are a number of ways to transfer sound from a TV to a home theater, any will work, taking into account the condition of 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 put your anxiety aside if your movie accompaniment is recorded in mono. Every self-respecting home theater has a splitter inside that easily splits the sound into channels of the Sound Around format.

FAQ: Connecting a TV to a Computer HDMI

Let’s dare to assume: the source of the TV playback is indicated incorrectly. Check if the Target of the computer signal is correct. Use the remote control for the TV. Using the menu or the Source or HDMI keys, make sure that the source matches exactly the jack where the wire is plugged. For example, if it is HDMI 3, then HDMI 3 should be put in the menu. From the laptop side, use the FnF3 or F4 function key (differently on different models) to select the Duplication mode.

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

  • There is no sound on the TV through the HDMI cable, there is an image, what to do?

The output device of the audio stream of the personal computer is not set correctly. Click the speaker icon (bottom right of the screen). Eliminate the problem by clicking Playback Devices. In the window that opens, turn off the playback devices, excluding the TV speakers. If necessary, also make the instance active (the line will turn green).

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

  • Laptop does not see TV via HDMI.

You need to select the correct TV output source. Switched on devices should see each other. There is evidence that cables of different versions of standards are incompatible with equipment. In the presence of v1.3, the technique worked, the replacement of v1.4 provoked the disappearance of the picture. Sometimes configuring a video card requires adding a second monitor manually. Relevant for desktops.

You see: there are few reasons (the TV does not see HDMI). Mainly setting up equipment. Experts recommend installing a new TV firmware, then turn off the device, pause for 5 minutes. It is permissible to reboot the product manually (the menu will help), for each model the exact sequence of actions is different: LG, Sony, Samsung. the device demonstrates its peculiarities. Proceed according to the manual. Farewell advice. Be sure to try one by one the ports of the TV, changing the image source through the menu. There were cases when only one of the four HDMI jacks worked, for example, the fourth. If we watch movies, there is no difference, number 1, 2, 3

Readers must understand: Windows is not perfect. For the equipment to work, you have to reboot the devices several times. It happens that the pros ask why digital technology failed? The master shrugs, says Windows. Must Die, Linux. well done. We find it difficult to say what the phrase means, but for some reason the difficulties on the forums relate specifically to the paid operating system, and not to the freely distributed one. We see no reason to discuss further.

Diagnostics and elimination of problems

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

Checking the settings on the PC

What if the PC settings were knocked out or not set correctly? In addition, to simply connect an HDMI cable to your device, you need to give your computer instructions on how to work with a TV that was connected via HDMI. It is relatively easy to do this, even the command line is not needed or search in the control panel.

All that is required of you is to press the “Start” key combination P (Russian З). After that, you will be presented with a small menu located on the screen to the right. You can find out what it looks like in the screenshot, but if you have Windows 7 or higher operating system, there shouldn’t be any difficulties with setting up a signal via a PC.

As you can see, in the screenshot above, the “Computer screen only” mode is set. This means that even with the HDMI cable connected, the image will not be transmitted to the large monitor, and this may cause the problem described in this article. All you need to do is choose a convenient option from the list.

  • “Duplicate” means that the picture that is on the screen of your laptop or monitor and the picture on the TV will be repeated in the same quality.
  • Expand. this is a multi-monitor mode that allows you to enlarge the screen size at the expense of multiple monitors.
  • Second Screen Only allows you to turn off your laptop screen and only display the image on a large display connected via HDMI.

The most convenient option is repetitive, because then the image is transmitted to two sources at once.

If you do not plan to use a laptop, but use it to access the Internet, you can turn off its screen altogether using the last method. Most often, it is at this stage that most pairing problems are resolved. But what if both of the above methods did not work and the TV screen is still blank?

Checking the settings on the TV

Before you start worrying about a faulty cable or problems with the HDMI connector, we advise you to turn your attention to the settings of the TV itself. Most users stumbled upon the fact that due to the wrong choice of HDMI channel, they could not display the image from the monitor on the big screen. To avoid this, simply flip through all the HDMI channels on your TV to check if your TV or laptop is working. So, detailed instructions.

  • Turn on the Sources menu. This item is called differently on different TV models. To make it clearer, this is a menu in which you select a connection, for example, through a digital set-top box, cable or HDMI port.
  • With the Sources menu open, try all the connection options available to you. Modern TVs are equipped with multiple HDMI ports at once, so check out not only standard HDMI-1 but other channels as well. We recommend that you click through absolutely the entire list to make sure that the name of the channel corresponds to reality.

If you checked all the sources from the TV, and the image still does not appear on the TV, go to the next step.

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Laptop and TV connectors

As mentioned above, the cases when it comes to HDMI connectors have recently become more and more common. Connectors suffer the most from users pulling and even pulling out the cable. It is quite easy to damage the contacts located inside the motherboard, which makes it almost impossible to connect to a computer or TV later.

To fix this problem, you will need to carry your device to a service center or to private specialists who can re-solder the board. To make sure your theory is correct, you can test the cable’s functionality on other laptops or TVs. Thus, you can understand whether the root of the problem lies in the connectors of your devices or not.

Why the TV does not see the computer via HDMI?

Sometimes connecting a set-top box or TV to a computer via an HDMI cable, the image is not displayed on the screen. In addition, it happens that the TV does not notice the connection at all. What to do in this case? What could be the problem and can it be corrected at home, without the help of a specialist?

In this article, we will break down some of the most popular methods that can fix the problem of pairing a TV with a computer.

Cable check

This factor should never be underestimated. Often there are cases when the problem lies precisely in the HDMI cable, which due to its “old age” has already failed or is simply not connected correctly.

To rule out this cause, carefully examine the cable and try to reconnect the TV to the monitor. If possible, use a different HDMI input or cable to understand what exactly is the cause of the malfunction.

In addition to the cable itself, carefully inspect the connector that needs to be inserted into the TV or laptop. Inaccurate use of these components often leads to the fact that the pins in the connector are simply bent or missing altogether, which makes it impossible to connect to the computer.

If you have any doubts about whether everything is in order with your cable, we recommend that you take another one to check its performance. If it was about the cable, and you have already gone through all the previous methods, then replacing the cable can be an excellent solution to your question.

But in order not to buy the cable again, we recommend testing its capabilities on other devices to make sure that the problem is really with the cable. Connect HDMI to another computer and TV, then try connecting to them. If the image appears, then the matter is, rather, in the faulty connectors of the TV or laptop.

Updating video drivers

Although not often, it happens that due to the installed old version of the drivers, the compatibility with the HDMI connector of the laptop may be broken, which is why it is impossible to display the image on the big screen. What should be done in this case? Try updating the drivers for your video card by unchecking the “Enable experimental functions” checkbox. This is how it looks in the case of video cards from NVidia.

Depending on which video card is installed on your laptop, we recommend running special applications from the manufacturer (Geforce Expirience in the case of NVidia), go to the “Settings” section and uncheck the box “Enable experimental functions”.

Also, check manually if there are new driver versions that have not yet been installed on your PC. You can do this by going to the “Drivers” tab and clicking “Check for Updates”.

In these ways, you can determine why the TV does not see the computer via HDMI on Windows 10. If none of the options is suitable, it is likely that the problem lies deeper, and then you need to transfer your device to a service center to understand what is problem.

Incorrect monitor settings

If there are no problems with signal transmission, then you need to diagnose the settings of the laptop or computer. Very often, the computer does not see the TV via HDMI precisely because of incorrect system parameters. No special knowledge is required for this. It is enough just to follow a simple instruction:

  • Move the mouse over the free space of the screen, and then right-click.
  • In the context menu that appears, select “Screen resolution”. This item is sometimes referred to as “Characteristics”. It all depends on the version of the operating system.
  • Choose the best way to display your picture on a large TV screen. Adhere to the resolution stated in the TV specifications.

The settings panel is much easier to turn on on a laptop. Hold down the FnF4 key combination. Hold this combination until the optimal resolution is automatically determined. As soon as the laptop or PC goes into sleep mode, the image will go blank. Therefore, it is better to turn off automatic sleep in order to establish an uninterrupted connection with the TV.

Broken cable

In situations where the image was transmitted correctly from a laptop connected to a TV, and then the synchronization was interrupted, you need to start by checking the integrity of the cable. The plug may have come off or the wire has been broken. Most of the problems arise precisely because the plug comes off. This could even happen due to the fact that the user just passed by. Mechanical damage to the cord is less common. Cables come in different lengths. Therefore, users have the opportunity to choose the best option for themselves. This eliminates interruptions.

If the laptop is connected to the TV, and there is still no picture, then first check if the plugs are correctly inserted into the connectors. If the TV does not see the HDMI cable from the TV, try a different cable. It cannot be ruled out that connection failures were caused by damage to the wire.

TV not configured

Some TV models do not have an option to automatically detect the signal source. Especially if TV synchronization with other devices has been previously configured. In situations where, when connected via HDMI, the TV does not see a laptop or computer, take the remote control, and then select the list of available signal sources. From the proposed list, you need to select “HDMI”.

If the signal was not detected automatically when the cable was connected, then you need to do all the work manually. Step-by-step algorithm of actions:

  • One plug of the cable needs to be inserted into the port on the side or back of the TV. The second plug is inserted into the corresponding socket of the PC or laptop.
  • Take the remote control and press the “Source” or “Input” button. The name may vary depending on the model and manufacturer of the TV. When the list of available sources appears on the screen, select “HDMI”.
  • Go to TV settings to select a specific connector. TVs are predominantly equipped with two HDMI inputs. The connector number can be found directly below it. In the settings, select the one into which the cable was inserted. You can switch between ports using special buttons or numbers 8 and 2.
  • To make the changes made to the settings take effect, you need to press the “Enter” or “OK” button on the remote control. If there are no such buttons on the remote control, then just go down in the menu by pressing a little, and then select the “Apply” command. In the English version of the menu, it will be called “Apply”.

Remote controls for many modern TVs have an HDMI button. This means that you can ignore the second point of this instruction. Just press this key. As a result, it will switch to this signal source. Select the required port beforehand. How to do this is described in the third and fourth paragraphs of the instructions.

If you have any difficulties in the process of selecting a signal source, carefully study the instructions that came with your TV. It describes in detail the process of connecting additional devices using the HDMI connector.

Video card problem

Broken video card is another common reason why the TV stopped seeing a laptop or PC. The message “No signal” appeared on the screen, what should I do in such situations? To fix the problem, you need to update the drivers. Finding them on the Internet will not be difficult. You can download the update package from the official website of the GPU processor manufacturer.

You need to start by studying the technical parameters of the video card. The fact is that not all graphics modules support the option to display images on multiple monitors. You can familiarize yourself with such characteristics in the documentation that comes with the video card. If all documents have been lost, then you can use special software.

  • Go to the control panel.
  • In the “Display” column, select “Small icons”.
  • Go to “Device Manager”.
  • Find the “Display Adapters” tab in Device Manager.
  • Expand the tab to see the available graphics cards.
  • Right click on the video card, and then select “Update driver” from the context menu.
  • The operating system will automatically check for new drivers. Installation takes place in the background.

As noted earlier, you can also download the drivers yourself. Don’t download files from unverified sources. Download updates exclusively from the official portal of the video card manufacturer. Installation is carried out through an automated installer. Therefore, problems should not arise.

Inoperative connection port

Absolutely all connectors are susceptible to mechanical damage and short circuits, as a result of which the contacts burn out. Therefore, inaccuracy of the user or a sudden power surge can also lead to the fact that the PC does not see the TV. Experienced experts strongly advise to connect the HDMI cable only on condition that all equipment is de-energized.

Over time, the HDMI output pad on your computer will oxidize. Because of this, the device does not detect the connection. Contact the service center for qualified engineers to re-solder the damaged contacts, thereby restoring the functionality of the connector.

In some situations, connection problems arise due to the fact that the video card is not equipped with an additional power supply. Therefore, no synchronization takes place. It will be extremely difficult for an ordinary user to check the functionality of the connection. It is extremely important to first analyze the features of the graphics adapter.

Features of HDMI wires and the main causes of malfunction

HDMI stands for High Definition Multimedia Interface. It is a state-of-the-art connector that transmits audio and video at the same time. Almost all equipment is equipped with this interface. “Tulip” and other cables popular in the past are designed to transmit an analog signal. HDMI cable transmits content in digital content with Full HD or 4K resolution (depending on version).

Therefore, if you need to connect a computer to the TV screen, then it is best to use this particular interface. The connector provides the highest quality data transmission with the lowest latency. Unlike other wires, HDMI transmits sound and picture to TV at the same time.

The HDMI interface was introduced back in 2002. Since that time, the developers have released many different modifications. They gradually increase the carrying capacity of the cord. Developers try to timely add support for popular formats and many other useful features.

HDMI versions over 1.4 support internet signal transmission, 3D and 4K resolution. The HDMI internet connection differs from Wi-Fi wireless technology with increased data transfer speed and a more stable and reliable signal. The most popular HDMI form factors are:

  • type A. classic version;
  • type C. mini HDMI;
  • Type D. micro HDMI.

The last two types are designed to connect mobile phones, cameras and other portable devices. What causes wire breakage? Mainly short circuits and mechanical damage.

Why the TV does not see the laptop via HDMI and how to solve the problem

Synchronization of the TV and computer allows you to significantly expand the functionality of the equipment. The user will be able to run video games on the big screen, watch movies, series and TV shows. There are several connection methods, but HDMI remains the priority option. In some situations, the computer cannot see the TV via HDMI. What is causing this problem? There are several options. Now we will consider each of them, as well as provide useful recommendations for reconnecting.

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Causes of malfunctions and their elimination

Why can’t my computer or laptop see the TV? There are several reasons. Let’s list the most popular ones:

  • the equipment is connected incorrectly;
  • damaged HDMI cable;
  • faulty interface on a PC, laptop or TV;
  • problems with video card drivers;
  • incorrect monitor settings;
  • Incorrect settings on the TV
  • the GPU processor of a computer or laptop is out of order.

Now let’s take a closer look at why the connection of the computer to the TV does not work. The main stages of equipment diagnostics:

  • Assessment of the correctness of the connection diagram and visual inspection of the integrity of the wires.
  • Checking computer and TV settings.
  • Testing the computer operating system for viruses.
  • Port health diagnostics by connecting to other devices.
  • Checking for graphics driver updates.

Now let’s take a closer look at why the TV does not find a PC or laptop. We will offer useful troubleshooting tips.

Some tips

The last thing that could be the reason that the TV does not receive an image via HDMI is a broken port. For diagnostics, check the functionality using other adapters. If the devices become visible, the error lay precisely in this.

Common causes of poor connection

If the TV does not see the laptop, and the connection is made, then the reasons may be as follows:

  • Cable is incorrectly connected or defective.
  • Monitor settings error.
  • Incorrect operation of the video card of a laptop or PC.
  • The parameters are not configured on the TV itself or any other brand.

Let’s take a closer look at why the TV does not see HDMI and the second device through it.

Monitor settings

After making sure that the signal from the TV is on the right path, we proceed to diagnose the laptop or PC screen, or rather, to the settings. Any user with basic knowledge of their computer can conduct them:

  • Move the mouse over any free space on the screen and press the right button.
  • In the list that appears, select “Screen resolution” or “Graphic characteristics” depending on the type of OS.
  • Choose a suitable option for displaying pictures on TV. The device passport contains a valid permission, adhere to it.

Everything is easier on a laptop. Press the “Fm” and F4 buttons at the same time, hold until the optimal option is selected. After that, the laptop will connect to the TV correctly and the error that there is no image will go away.

Ways to connect devices

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

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

The HDMI connector on a TV is usually located on the back or side. The computer begins to see another device almost immediately after connecting, but problems may arise that there is no image or other errors. That being said, this is the most proven and common way to connect a laptop to a TV. Also read, ways to connect Xbox to TV.

Graphics card error

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

To eliminate it, you need to try to install new drivers that are available on the global network for each device model. Sometimes a complete reinstallation or replacement of an item may be required.

Cable check

If the TV connected to the PC suddenly stopped working, and until that moment everything was set up properly, it means that the cable came off or was interrupted. The first option is more common, since you can hook the adapter just by walking 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 fall under someone’s heavy foot.

In any case, if there is no picture, first of all check if the connectors are fully inserted into both devices. And if there are any foreign objects on the adapter itself. You can also try to put in a different cable to make sure that this error is absent. Also read why the TV won’t connect Wi-Fi.

Equipment verification steps

  • First of all, you need to check the quality of the wire connection and the condition of the connectors.
  • Next, you need to check the correctness of the computer settings.
  • Then updated drivers and graphics card settings are checked.
  • Running an antivirus program to scan for malware.
  • Port check. It is recommended to connect to another device.

TV settings

When the TV does not see the laptop via HDMI immediately after connecting the equipment, it is most likely that the wrong source is selected 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” on the TV from LG. Go into 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 the diagnostics further.

update the drivers for the video card

Initially, it is recommended to find out the characteristics of your video card, since some graphics adapters are not able to support the output of an image to two displays at once. You can find out this aspect by looking at the documentation for the video card / computer / laptop or using third-party software.

First, update the drivers for your adapter. You can do it like this:

    Go to “Control Panel”, put “Display” to “Small icons” and find “Device Manager”.

In it, find the “Video adapters” tab and open it. Select one of the installed adapters, if there are several;

  • Right click on it and click “Update Drivers”. The system itself will find and install the necessary drivers in the background;
  • Similarly with point 3, do with other adapters, if several are installed.
  • Also, the drivers can be downloaded and installed from the Internet, necessarily from the manufacturer’s official website. It is enough to indicate the adapter model there in the appropriate section, download the necessary software file and install it, following the instructions.

    correct TV settings

    Some TV models are unable to independently determine the signal source, especially if any other device was connected to the TV via HDMI before. In this case, you will have to re-drive all the settings. The instructions for this case may vary slightly from the TV model, but its standard version looks something like this:

    • Connect the laptop to the TV using an HDMI cable, make sure that everything is connected correctly and the contacts do not come off. For persuasiveness, you can additionally tighten special screws, if they are provided for by the design;
    • On the TV remote control, find any button with one of these names. “Source”, “Input”, “HDMI”. With their help, you will enter the connection source selection menu;

    Select the desired HDMI port from the menu (many TVs have two). The desired port can be viewed by the number of the connector where you plugged the cable (the number is written above or below the connector). To navigate through the menu items, use either the channel switching buttons or the numbers 8 and 2 (depending on the TV model);

    For some TVs, the instructions may look slightly different. In the second paragraph, instead of the proposed options, enter the TV menu (a button with a corresponding inscription or logo) and select the HDMI connection option. If the TV has several connectors of this type, then do the rest in accordance with paragraphs 3 and 4.

    If this method did not help, use the instructions for the TV (it should say how to connect via HDMI cable to this particular device) or pay attention to other ways to solve the problem.

    TV does not see computer via HDMI

    HDMI is a popular connector for interfacing various equipment with each other (for example, a computer and a TV). But when connecting, all sorts of difficulties can arise. technical and / or software. Some of them can be solved independently, to eliminate others it may be necessary to hand over the equipment for repair or replace a faulty cable.

    General Tips

    If you have a cable with any intermediate adapters, for example, you can use it to connect to a DVI connector. Instead, it is better to try using a regular HDMI cable operating in HDMI-HDMI mode, as the TV / monitor may not accept a cable that implies the ability to connect to multiple ports at the same time. If the replacement does not help, then you will have to look for and eliminate another cause.

    Check the HDMI ports on your computer / laptop and TV. Pay attention to these defects:

    • Broken and / or rusted, oxidized contacts. If any are found, then the port will have to be replaced completely, because contacts are its most important component;
    • Dust or other debris inside. Dust and debris can distort the incoming signal, which will cause inconvenience when playing video and audio content (quiet or no sound, distorted or stagnant image);
    • See how well the port is set up. If, at the slightest physical impact, it begins to loosen, then it will have to be fixed either independently or with the help of employees of specialized services.

    Perform a similar test on your HDMI cable, pay attention to the following points:

      Broken and / or oxidized contacts. If such defects are found, the cables will have to be replaced;

  • Physical damage to the wire. If the insulation is broken in some places, there are deep cuts, fractures or the wires are partially exposed, then such a cable, if it will reproduce something, then with various defects. It can also be dangerous to health and life, since there is a risk of getting an electric shock, so it needs to be replaced;
  • Sometimes there may be debris and dust inside the cable. Clean it gently.
  • Please understand that not all cables match all HDMI connectors. The latter are divided into several main types, each of which has its own wire.

    computer settings

    The misconfiguration of the multi-screen computer / laptop is also the reason why the HDMI connection is ineffective. If no external displays other than a TV are connected to the computer, then this method may not be considered, since problems arise if a monitor or other device is connected to a PC or laptop using HDMI (sometimes other connectors, for example, VGA or DVI).

    A step-by-step guide to setting up multiple screens for Windows 7/8 / 8.1 / 10 devices looks like this:

      Right-click an empty area on the desktop. In the menu that appears, you need to select “Screen Resolution” or “Screen Settings”.

    Under the picture with the screen on which the number 1 is written, you need to click on the item “Find” or “Find” for the system to detect and connect the TV.

  • After that, the “Display Manager” opens, where the settings for several screens are made. Make sure the TV is detected and connected correctly. If everything is fine, then in the window where one rectangle of the screen with the number 1 was previously displayed, a second similar rectangle should appear, but only with the number 2. If this did not happen, check the connection.
  • In the “Display Manager” you need to select options for displaying information on the second display. There are 3 of them offered. “Duplicate”, that is, the same picture is displayed on both screens; “Expand screens”. both will complement each other, creating a single workspace; Show Desktop 1: 2. The image is displayed only on one of the displays.
  • For correct operation, it is advisable to select either “Duplicate” or “Display Desktop 1: 2”. In the latter case, you also need to specify the main screen (TV).
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    It is worth remembering that HDMI is capable of providing a single-stream connection, that is, correct operation with only one screen, therefore it is recommended to disable an unnecessary device (in this example, a monitor) or select the display mode “Display desktop 1: 2”. To begin with, you can see how the image will be broadcast to 2 devices at the same time. If you are satisfied with the quality of the broadcast, then you do not need to change anything.

    we clean the computer from viruses

    Least of all, problems with the output of a signal from a computer to a TV via HDMI arise due to viruses, but if none of the above helped you and at the same time all cables and ports are working, then the probability of a virus penetration should not be ruled out.

    To protect yourself, it is recommended to download, install any free or paid antivirus package and regularly use it to scan your PC for dangerous programs. Let’s consider how to run a PC scan for viruses using Kaspersky Anti-Virus (it is paid, but there is a demo period for 30 days):

      Run the antivirus program and in the main window select the scan icon with the corresponding signature.

  • Select the type of check in the left menu. It is recommended to select “Full scan” and click on the “Start scan” button.
  • The “full scan” may take several hours, and upon completion, all detected dangerous files will be displayed. Some will remove the antivirus program itself, others will offer you to delete it if it is not 100% sure that this file is dangerous. To delete, click the “Delete” button opposite the file name.
  • Problems with connecting a computer with HDMI to a TV do not occur often, and if they do appear, they can always be solved. Provided that your ports and / or cables are broken, they will have to be replaced, otherwise nothing will be output.

    TV does not connect to computer via HDMI

    Each of us could have such a problem as the TV does not see the PC via HDMI and there is no signal. Usually this can be due to several reasons, for example, the cable is not properly connected to the TV, the settings on the TV itself or in the computer are incorrect.

    Now we will try to solve this problem in several ways. Follow all the steps carefully, and you will succeed.

    Method one: check if the cable is properly connected to the TV itself

    We connect it and remember the HDMI number on the TV. We check if the cable is perfectly inserted on the personal computer. Next, we check the connection and be sure to see if we inserted the HDMI input cable correctly.

    Method two: check the settings on the TV

    Having selected the correct HDMI in the settings parameters, it is possible that the PC connection is not always displayed on the TV, it may be that we will see “No signal” or “Cable not connected”. There should be a button on the remote that usually looks like SOURCES. Press that button and select HDMI numbered.

    Some TV models are unable to independently determine the signal source, especially if any other device was connected to the TV via HDMI before. In this case, you will have to re-drive all the settings. The instructions for this case may vary slightly from the TV model, but its standard version looks something like this:

    Connect the laptop to the TV using an HDMI cable, make sure that everything is connected correctly and the contacts do not come off. For persuasiveness, you can additionally tighten special screws, if they are provided for by the design;

    On the TV remote control, find any button with one of these names. “Source”, “Input”, “HDMI”. With their help, you will enter the connection source selection menu;

    Select the desired HDMI port from the menu (many TVs have two). The desired port can be viewed by the number of the connector where you plugged the cable (the number is written above or below the connector). To navigate through the menu items, use either the channel switching buttons or the numbers 8 and 2 (depending on the TV model);

    To apply and save the changes, press the “Enter” or “OK” button on the remote control. If there are no such buttons, or when you click on them, nothing happens, then find an item in the menu with one of the inscriptions. “Apply”, “Apply”, “Enter”, “OK”.

    For some TVs, the instructions may look slightly different. In the second paragraph, instead of the proposed options, enter the TV menu (a button with a corresponding inscription or logo) and select the HDMI connection option. If the TV has several connectors of this type, then do the rest in accordance with paragraphs 3 and 4.

    If this method did not help, use the instructions for the TV (it should say how to connect via HDMI cable to this particular device) or pay attention to other ways to solve the problem.

    Method three: checking the settings on a personal computer

    It may be that on the PC the display is simply turned off, so the image does not appear. How can I check this? Easily! In Windows 8 and Windows 10, we press the WinP keys and select one of the three options that are presented to us for displaying a picture, namely “Duplicate”, “Extend”, “Only projector”

    The misconfiguration of the multi-screen computer / laptop is also the reason why the HDMI connection is ineffective. If no external displays other than a TV are connected to the computer, then this method may not be considered, since problems arise if a monitor or other device is connected to a PC or laptop using HDMI (sometimes other connectors, for example, VGA or DVI).

    A step-by-step guide to setting up multiple screens for Windows 7/8 / 8.1 / 10 devices looks like this:

    Right-click an empty area on the desktop. In the menu that appears, you need to select “Screen Resolution” or “Screen Settings”.

    Under the picture with the screen on which the number 1 is written, you need to click on the item “Find” or “Find” for the system to detect and connect the TV.

    After that, the “Display Manager” opens, where the settings for several screens are made. Make sure the TV is detected and connected correctly. If everything is fine, then in the window where one rectangle of the screen with the number 1 was previously displayed, a second similar rectangle should appear, but only with the number 2. If this did not happen, check the connection.

    In the “Display Manager” you need to select options for displaying information on the second display. There are 3 of them offered. “Duplicate”, that is, the same picture is displayed on both screens; “Expand screens”. both will complement each other, creating a single workspace; Show Desktop 1: 2. The image is displayed only on one of the displays.

    For correct operation, it is advisable to select either “Duplicate” or “Display Desktop 1: 2”. In the latter case, you also need to specify the main screen (TV).

    It is worth remembering that HDMI is capable of providing a single-stream connection, that is, correct operation with only one screen, therefore it is recommended to disable an unnecessary device (in this example, a monitor) or select the display mode “Display desktop 1: 2”. To begin with, you can see how the image will be broadcast to 2 devices at the same time. If you are satisfied with the quality of the broadcast, then you do not need to change anything.

    After we have done everything, the image will be duplicated on the TV monitor. update the drivers for the video card

    Initially, it is recommended to find out the characteristics of your video card, since some graphics adapters are not able to support the output of an image to two displays at once. You can find out this aspect by looking at the documentation for the video card / computer / laptop or using third-party software.

    First, update the drivers for your adapter. You can do it like this:

    Go to “Control Panel”, put “Display” to “Small icons” and find “Device Manager”.

    In it, find the “Video adapters” tab and open it. Select one of the installed adapters, if there are several;

    Right click on it and click “Update Drivers”. The system itself will find and install the necessary drivers in the background;

    Similarly with point 3, do with other adapters, if several are installed.

    Also, the drivers can be downloaded and installed from the Internet, necessarily from the manufacturer’s official website. It is enough to indicate the adapter model there in the appropriate section, download the required software file and install it following the instructions. we clean the computer from viruses

    Least of all, problems with the output of a signal from a computer to a TV via HDMI arise due to viruses, but if none of the above helped you and at the same time all cables and ports are working, then the probability of a virus penetration should not be ruled out.

    To protect yourself, it is recommended to download, install any free or paid antivirus package and regularly use it to scan your PC for dangerous programs.

    Let’s consider how to run a PC scan for viruses using Kaspersky Anti-Virus (it is paid, but there is a demo period for 30 days):

    Run the antivirus program and in the main window select the scan icon with the corresponding signature.

    Select the type of check in the left menu. It is recommended to select “Full scan” and click on the “Start scan” button.

    The “full scan” may take several hours, and upon completion, all detected dangerous files will be displayed.

    Some will remove the antivirus program itself, others will offer you to delete it if it is not 100% sure that this file is dangerous. To delete, click the “Delete” button opposite the file name. General Tips

    If you have a cable with any intermediate adapters, for example, you can use it to connect to a DVI connector. Instead, it is better to try using a regular HDMI cable operating in HDMI-HDMI mode, as the TV / monitor may not accept a cable that implies the ability to connect to multiple ports at the same time. If the replacement does not help, then you will have to look for and eliminate another cause.

    Check the HDMI ports on your computer / laptop and TV. Pay attention to these defects:

    Broken and / or rusted, oxidized contacts. If any are found, then the port will have to be replaced completely, because contacts are its most important component;

    Dust or other debris inside. Dust and debris can distort the incoming signal, which will cause inconvenience when playing video and audio content (quiet or no sound, distorted or stagnant image);

    See how well the port is set up. If, at the slightest physical impact, it begins to loosen, then it will have to be fixed either independently or with the help of employees of specialized services.

    Perform a similar test on your HDMI cable, pay attention to the following points:

    Broken and / or oxidized contacts. If such defects are found, the cables will have to be replaced;

    Physical damage to the wire. If the insulation is broken in some places, there are deep cuts, fractures or the wires are partially exposed, then such a cable, if it will reproduce something, then with various defects. It can also be dangerous to health and life, since there is a risk of getting an electric shock, so it needs to be replaced;

    Sometimes there may be debris and dust inside the cable. Clean it gently.

    Please understand that not all cables match all HDMI connectors. The latter are divided into several main types, each of which has its own wire.