Doesn’t output image to TV via HDMI

Windows XP

In Windows XP, setup is done as follows:

  • Open the start menu.
  • Select “Control Panel”.
  • Then go to the Sounds and Audio Devices tab.
  • In the “Audio” section, select the default audio output device in the upper right corner (“Set standard device”).
  • Save changes.

Updating the TV’s firmware via the Internet

This software update option is suitable for Smart TV models. Use it if the TV does not see the set-top box via HDMI, and also does not interact with other connected devices: a computer, laptop, and so on. Update instructions:

  • Connect your TV to the Internet. cable or router. If the connection is impossible or there is no signal, go directly to the second of the methods presented in the section.
  • In the main menu, find and open the line “Support”.
  • Click on the heading “Software Update”.

output, image, hdmi

  • Give the OS some time (from a couple of seconds to a minute or more) to search for available new software versions. When the scan is over, agree to download and install the updated firmware.

When the process is complete, turn off and turn on the TV, and then check if it sees the PC or laptop connected via HDMI.

Never disconnect the TV from the power supply during the firmware replacement. this can lead to a complete device failure, at best eliminated by installing a software update from a USB flash drive.

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.

We connect the TV correctly using HDMI

Home theater owners need to know the truth. the digital media device has a playback source menu. The easiest way to illustrate the fact is on old music centers. Traditionally, the devices had three blocks:

  • Cassette Decks: Recorder, Playback.
  • Radio receiving broadcast.
  • Laser discs.

over, the blocks refused to play the melodies at the same time. It was necessary to switch the section with a special lever. Even a modern phone is often equipped with an FM button Didn’t guess why the TV can’t see HDMI? Move on. The rear of a TV usually contains half a dozen output connectors. Between the troops we will find a “tulip” formed by three petals, from time to time VGA puffs up, certainly. HDMI. Traditionally, the list is not limited to a scanty list, see the instructions for more details. With the remote control subtly pressing a button (with a single HDMI port), you can select the 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. But:

  • In laptops, the function keys FnF3 (F4) will allow you to open a pop-up system menu listing interesting options:
  • Only a computer. The image will not be supplied to the external monitor (TV). Most people choose the named option. Don’t be surprised if your laptop can’t see the TV.
  • Duplicate. The laptop screen will be mirrored by the TV. This is what most people need.
  • Expand. Some people like to drag the windows of players, browsers to the TV, it is more convenient to watch movies. Afraid to judge (tastes are individual), select the Extend by lengthening the desktop option.
  • Only a projector. The laptop screen turns off. The image will be displayed individually on the TV.
  • Desktop personal computers determine the TV independently. Otherwise, take the trouble to visit the driver menu, select the required broadcast port.

Controlling a connected TV is easier through the desktop context menu. First, right-click the free space, select the Screen Resolution option. A good definition of the TV makes the Multiple Monitors button available. You will see four options that are exactly the same as the laptop options. Read the values ‚Äč‚Äčabove. It happens that the computer does not see the TV via HDMI: it makes sense to look here, examine the context menu. Monitors will be numbered with numbers, you can swap ports, just click, selecting the object of changing system parameters.

Buttons “Multiple monitors” are not available in case of mismatch: the system does not see the TV. Both devices must be switched on (230 volt mains supply).

Updating the graphics card driver

If the TV does not see the PC via HDMI, or this connection method has stopped working, then the reason may lie in the video card, or rather, its driver. It may have crashed, the driver is out of date, or it was not installed correctly initially.

In this case, you can make sure that the signal does not go due to the old driver on the video card, you can do this.

  • On the icon “My computer” or in the explorer on the tab “This computer” RMB should select “Control”.
  • Next “Device Manager”, “Video adapters” tab.
  • If a failure occurs, then there will be a yellow or red sign opposite the video card. They mean that the node is not working properly. If there are no symbols, then the video card is working, but the driver may be out of date, and this is a common reason that a number of functions do not work.
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There are several ways to update software for PC components. The most reliable option is to go to the website of the laptop or video card manufacturer and download the file for the required operating system, taking into account its bit depth. After installation, the device needs to be rebooted.

Advice! If it was not possible to find the driver, then the DriverPackSolution utility will come to the rescue. it independently scans the gadget and finds all the necessary software for each node.

If, after all the above steps, the laptop still does not connect via HDMI to the TV, then the reason is more complex, and you will have to fix it in the workshop. Which device requires a thorough diagnosis, you can find out by trying to connect the TV and PC to other equipment.

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).
  • 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.

    Setting the resolution and frequency

    The second reason that can affect the image is frequency. By default, the PC graphics card is set to 60 Hz. For TV it is worth trying to gradually decrease the value.

    Important to remember! Some TV manufacturers have a connection to a PC, and there is a special mode for this. It can be combined with the image adjustment or selected separately. Through it you can select the appropriate resolution for the PC.

    Some Samsung TVs had an issue where a window appeared with the text “HDMI mode not supported”. There were many recommendations on the forums to combat this, but it turned out that this is a problem with the factory firmware, and in order to fix the defect, you need to contact the manufacturer’s service center, where the new software is installed. Modern Samsung TVs do not have such nuances.

    What is HDMI?

    HDMI is a multimedia interface that transfers high definition video data and digital audio signals. This type of cable is widely used to connect TVs, game consoles, standalone video players, as well as audio receivers to mobile devices and computer equipment. If you have a desire to play video or show photos on a large screen, then you cannot do without such a device.

    Manufacturers of modern multimedia equipment now add HDMI connectors to the standard equipment 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.

    It is also worth noting that recently, the possibilities and advantages of a wireless connection when connected via HDMI adapters have been widely discussed. Outwardly, they resemble USB-Bluetooth and differ only in connectors.

    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 capable of supporting outputting images 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;
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    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.

    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.

    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).

    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.

    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).

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    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.

    Image is not output to TV via HDMI

    There can be many reasons for such a malfunction, so we will try to consider the most likely ones. Today we will talk about what to do if the computer does not see the TV through the HDMI cable.

    What defects should you pay attention to:

    The pins are the most important component for a successful HDMI connection. Pins can rust or oxidize over time, so you need to pay special attention to this part.
    2. Check the port for foreign objects (dust, small debris). In case of contamination, the incoming signal may be distorted, or even disappear altogether.
    3. Check the stability of the port. If the HDMI cable staggers at the slightest movement, then it must be secured in any way possible (by yourself or contact the service)

    Don’t forget to check the HDMI cable itself for defects. Pay attention to the following points:

    Damaged contacts (cable replacement required)
    2. Violation of the integrity of the cable (cuts, wire breaks). In this case, the cable must be replaced immediately, because in addition to poor signal transmission, it can pose a threat to your health.
    3. Check the cable for small debris and dust.

    Solution to the problem. Computer settings

    This section will be relevant for you if you are using a computer with multiple screens, because in this case, incorrect settings can lead to HDMI malfunctions.

    Our instructions are relevant for Windows 7,8,10.

    On the desktop, right-click an empty area. In the window that appears, go to “Screen Settings” (screen resolution).

    Click the “find” (find) button in the central part of the window.

    All connected monitors should appear in front of your eyes (if there are no technical problems). If the desired monitor does not appear, then it is worth checking the connection.

    Here you can also select the display mode on the screens. “Duplicate” will mean that all screens will display the same picture. “Expand screens”. monitors will complement each other.

    For correct work it is better to select the “Duplicate” mode.

    The HDMI cable is capable of supporting only one screen with good quality because it provides a single-stream connection. Malfunctions may be due to the fact that you have connected more than one device to the computer.

    Updating graphics card drivers

    In some cases, your graphics adapter may simply not be able to output images to two displays at the same time. You can clarify this feature of the video card on the Internet.

    Open “Control Panel” then go to “Device Manager”.

    Expand the list of video adapters.

    Right-click on one of them and select “Update driver”. Then it remains to wait for the end of the automatic download.
    4. Do the same with other adapters if there is more than one.

    If necessary, you can find the necessary drivers on the Internet by indicating your video card model on the manufacturer’s official website.

    Cleaning your computer from malware

    Various viruses can interfere with many functions of your computer, so problems with the HDMI connection are quite likely.

    For an immediate scan of your computer for viruses and subsequent prevention, we recommend that you use Kasperky antivirus. A huge team of qualified specialists is working on this program every day, constantly increasing the level of protection. It is worth noting that high-quality software is usually paid, so you can try Kaspersky for free only for a month.

    In the left part of the window, select the “Full scan” item and click the corresponding button to start.

    You will have to wait some time for a high-quality analysis of your computer for threats. After the end of the process, you will see all dangerous and potentially dangerous files, and you will also be able to personally decide which methods of treatment to apply.

    This is the end of the methods for solving the problem with connecting a computer to a TV via HDMI. One of the options should definitely help you. If you have any questions, then feel free to contact us in the comments. We hope our article helped you.

    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.