You can connect external devices such as TVs, projectors and monitors via the included HDMI port on the PC. HDMI (High Definition Multimedia Interface) allows you to enjoy clear audio and video on connected devices. However, some problems may prevent HDMI audio from working on the connected external device.

HDMI audio may not work due to outdated or defective drivers. In addition to driver problems, there are other factors that affect audio output: incorrect settings of the connected TV and a damaged HDMI cable. Some programs may not work properly with your computer, so no sound is output via HDMI.

To solve a problem with HDMI audio that does not work

Cable, computer and TV problems can easily be solved with the solutions below. The list of solutions may be a bit long, and that’s because there is no reason for the problems with HDMI audio.

The cause may vary depending on the external HDMI device connected and the PC used, so the solution may also vary.

1. Reboot your PC to

If temporary problems prevent HDMI audio from working, restart your computer to fix the problem. To restart your computer, click the Windows icon on the screen and then click the power button. Now click Restart.

alt=Restart system 4 width=263 height=164 data-ezsrc= />Restart computer

Close all windows and save your work before restarting the system. Rebooting is likely to solve the HDMI audio interference problem.

2. Connect the notebook to the power supply

If you use a notebook to connect to an external device via HDMI, you can connect the notebook to a power source. In many cases, drivers and HDMI services are disabled when the device is operated on battery power.

3. Checking the HDMI functionality of external devices

Most PCs have HDMI capabilities, but older TVs do not. Therefore, when connecting your computer to the TV, make sure that your TV has the HDMI function. You can check this using the instructions supplied with the TV.  If you do not have a manual, you can check it online on the manufacturer’s website using the model number of your TV.

4. Select HDMI as the default audio playback device.

You should check that the connected device is selected as the default playback device. When another device is selected, the audio output is routed to that device and not to the connected device.

Step one: Open the control panel by navigating to the Start menu.

Step two: In Control Panel, go to Hardware and Sound and click Sound Settings.

Step three: Now click on the Play tab and make sure there is a check mark next to the connected device. In our case it was a smart TV, it may differ depending on the name of the connected device.

If another device is selected, you can click on the external HDMI device and then click the Set as default option below to set it as the default device.

alt=Select HDMI as the default playback device width=394 height=452 data-ezsrc= />The external HDMI device must be set as the default playback device.

Then restart the computer and check that HDMI audio no longer works.

5. Disconnecting and connecting the HDMIcable

If HDMI audio does not work due to a connection problem, the problem can be remedied by reconnecting the HDMI cable.

Remove the HDMI cable from the PC and the TV or other external devices and wait a moment. You can restart both systems and reconnect the HDMI cable. This eliminates connection problems between the computer and the external device.

6. Use the correct HDMIconnector.

Today’s televisions are equipped with different connections. Be sure to connect an HDMI cable to the correct port. If your TV is equipped with a DVI/HDMI connector, do not use it, only use the HDMI connector.

To view the video and listen to the audio, you must select a connected HDMI slot. Make sure you also choose the right niche.

7. Use a different HDMI connector and cable

There may be a hardware problem causing HDMI audio to not work. You can temporarily use another HDMI cable even if the cable shows no signs of deterioration.

Try using a different HDMI port on your computer and an external device. A port can malfunction and sometimes not work as expected. The use of another port can therefore help to solve the problem that has arisen.

8. Turning off exclusive speaker mode

If HDMI audio does not work on the connected external device, you can temporarily disable Speaker Exclusive mode.

Step one: Open the control panel window and go to Hardware and Sound ➜ Sound.

Step two: In the Play tab, right-click on the speaker/headset and select Properties.

alt=open loudspeaker properties width=447 height=211 data-ezsrc= />open loudspeaker properties

Step three: In the Speaker Properties dialog box, click the Advanced tab and under Allow Exclusive Mode, delete the application to have exclusive control over this device and prioritize applications in Exclusive Mode.

alt=open exclusive mode width=400 height=450 data-ezsrc= />open exclusive mode for speakers

Step four: Click Apply and then click OK.

Then restart the computer and establish an HDMI connection between the computer and the external device. Now check if you can listen to the sound of an external device.

9. Reboot Windowsaudio service

You can restart the Windows audio service to solve problems with the HDMI audio output. Make sure you are logged in with an administrator to restart the service, as you cannot do this with a normal account.

Step one: Press Windows + R to open Runs and type services.msc. Press OK to open the Services application.

alt=Open Services via Run 3 width=394 height=205 data-ezsrc= />Open Services application.

Step two: In the Services application, search for Windows Audio and right-click on it. Click Restart in the context menu to restart the service.

alt=Reboot Windows Audio Service 1 width=371 height=266 data-ezsrc= />Reboot Windows Audio Service

Wait a moment and check that the HDMI audio output is working properly.

10. Running WindowsSound Detection

You can run Windows Sound troubleshooter to find problems with HDMI audio. To do this, right-click the volume icon on the taskbar and then click the audio troubleshooting button.

Pay attention: If you cannot find the volume/speaker icon in the taskbar, press the up arrow ⏶ to find it.

When asked if you would like to perform a quick search, click Yes so you can perform a search and troubleshoot problems if they are found.

alt=Scan to fix audio problems width=791 height=527 data-ezsrc= data-ezsrc= data-ez= />Start scan to fix audio problems

You can dispose of HDMI audio that does not work after scanning.

11. High Resolution Audio Driver Update

Outdated drivers are the cause of many problems in Windows 10. HDMI audio may not work because of these obsolete audio device drivers. However, you can update the high-definition audio driver to fix this problem.

Step one: Press the Windows + X button and open the Device Manager.

Step two: In the menu bar, click View and then click View hidden devices.

alt=Display hidden devices in Device Manager width=352 height=206 data-ezsrc= />Display hidden devices in Device Manager

Step three: Now expand the Sound, Video and Game Controllers section and right-click on High Definition Audio. Then select Update Driver.

You can follow the wizard on the screen to perform the update.

alt=Fresh High Definition Audio Driver width=499 height=293 data-ezsrc= />Fresh High Definition Audio Driver

You can download the stable version of the driver from the manufacturer’s website to update the driver. And after updating the sound driver, you will need to restart the computer for the change to take effect. If you need help updating a driver, refer to the Windows 10 Device Driver Guide.

12. Activating audio device control

When the audio controller is turned off, you cannot hear the sound on a connected external HDMI device. You can easily activate it from the device manager by following the steps below.

Step one: Open Device Manager and go to View ➜ Show hidden devices.

Step two: Now expand the system devices and locate the high-resolution audio controller. When you have found it, right click and select Properties.

alt=Open sound control properties width=521 height=344 data-ezsrc= />Open high resolution sound control properties

Step three: In the Properties window, click the Driver tab and click Enable to activate the controller of the audio device.

You need to restart the computer after activating the driver. If you see the Disable option there, it means that the driver is already enabled.

13. Graphics card driver update

You can update the graphics card driver to correct the HDMI sound that does not work on the TV. This may sound strange, but many users have solved this problem by updating the display driver.

Open the Device Manager and expand the Display Adapter. Right-click on the graphical driver and click Update Driver.

alt= graphics card driver update width=418 height=167 data-ezsrc= /> graphics card driver update

Reboot the computer and check whether the HDMI audio problem is resolved or not.

14. Malware and virus scanning

If your computer is infected with a virus, this can cause problems with audio playback on an output device such as a computer, for example a TV. In such a scenario, you can scan for viruses using a good third party malware removal tool or Windows’ built-in security feature.

To use Windows Security, press the Windows + I button to open the Settings program and go to Updates and Security.

Now go to the Windows Security section and click on Virus and Threat Protection under Protection.

alt=Open Windows Security 1 width=779 height=379 data-ezsrc= /> Click Virus and Threat Protection

In the Windows Security window, click the Scan Settings link. Now select the Full Scan option so that your system can be thoroughly scanned for viruses and malware. Click on the Scan now button to start scanning.

alt= Format Full Scan 1 width=698 height=542 data-ezsrc= data-ez= /> Format Full Scan

Windows will scan and remove a virus if it is detected. You can connect the output device to the PC after scanning and check if you can hear the sound this time.

15. Windows 10 Update

Windows 10 updates fix bugs and issues from previous versions. If there are problems with HDMI audio due to some bugs, you can update Windows and the problem will be fixed.

Start the Settings application and go to Updates and Security. Then go to Windows Update and click on Check for Updates.

alt=Check for Windows 10 updates 3 width=428 height=196 data-ezsrc= />Check for Windows updates

You can download and install the latest updates. After the update, restart the computer and check that the HDMI error has been resolved.

16. Using the SFCcommand

System files play a crucial role in the proper functioning of your Windows computer. If one of the system files is damaged or defective, you may experience problems with HDMI audio. Windows provides the SFC (System File Checker) utility to check and repair these system files.

Type cmd in the Start menu and then right click on the command line. In the context menu, select Run as Administrator. You may need an administrator ID to execute the command line as an administrator.

In the terminal, type sfc /scannow and press Enter.

alt=sfc command scannow 3 width=640 height=211 data-ezsrc= data-ez= /> Run sfc command /scannow

The execution may take some time, in the meantime do not close the command line window. For more information on what you can do with this tool, see the FCS manual.

17. Removing a recently installed application

If you have recently installed software, this may cause problems with the HDMI connection. This can happen if the application is not compatible with your computer or has been downloaded from unauthorized sources. In many cases, application files can conflict with system files and cause problems for users.

This way you can temporarily remove the application and see if HDMI audio is working before you start. If it works, you need to find a replacement for the uninstalled application.

18. Swivel guide

An unstable version of the driver can cause problems with your Windows 10 system. If you have recently updated your drivers, you will need to go back to the previous stable version to fix the HDMI audio that is not working.

To reset the drivers, open the device manager and navigate to the recently updated driver. Now right click and select Properties. In the Driver Properties window, click on the Driver tab and then click Reset Driver.

If this option is not gray, it means that you cannot reset this particular driver. You may have problems with HDMI audio if you have updated the audio or graphics drivers with unstable versions.

For driver updates, we recommend using stable drivers from an authorized source.

19. Repair record

If the registers are damaged, you cannot receive audio from the output devices connected through the HDMI terminal. You can repair the registry manually or use a third party program such as Advanced SystemCare.

Advanced SystemCare can help you find errors in your registry and fix them with a single click. No technical knowledge is required to use this instrument. This tool can help you solve many other system related problems. Read the Advanced SystemCare magazine to see what it does in detail.

20. Reinstalling the graphics and audio drivers

You may attempt to reinstall the graphics and audio drivers to correct the HDMI audio problem that is not working.

To reinstall the graphics driver, open the device manager and expand the display adapters. You can then right-click on the graphical driver and click on Uninstall Device.

alt=Uninstalled GUI Driver = 418 height=167 data-ezsrc= />Uninstalled GUI Driver.

Now restart your computer so that Windows can automatically reinstall the driver. In the same way, you can expand the sound, video and game controllers and remove the high-definition audio driver.

You can restart the PC or go to action ➜ Check the hardware changes to reinstall the audio driver. After reinstalling the speakers, you should be able to hear the sound again.

21. Troubleshooting software compatibility problems

Sometimes the driver software may cause compatibility issues, causing HDMI audio to not work. You can start solving software compatibility problems. The drivers will then operate in compatibility mode.

Start the Settings application and go to Updates and Security ➜ Troubleshooting. Click on Tools Troubleshooting to view a list of available troubleshooting tools.

Now scroll down to find and fix the other problems, and then click Problem Solving with Program Compatibility. Press the Run the Troubleshooter button.

alt=Software compatibility Diagnostics=530 height=157 data-ezsrc= />Start Software Compatibility Diagnostics

You will be prompted to select the driver software; you can select it and follow the on-screen instructions to complete troubleshooting.

If you cannot find the drivers in the list, right-click on the downloaded drivers and select Properties from the context menu. Then click the Compatibility tab and click Run Compatibility Troubleshooting.

alt=Windows Runtime Compatibility Troubleshooting width=354 height=147 data-ezsrc= />Driver Runtime Compatibility Troubleshooting

If there are problems with the compatibility of the downloaded drivers, they will be resolved by troubleshooting and you will be able to enjoy your HDMI connection with sound.

22. Removal of temporary files and folders

Unprocessed files can slow down the PC and cause problems with HDMI audio. You can clean temporary files using Disk-cleaning in Windows 10. Search for Clean Disk in the Start menu search box and open it from the search results. If you have more than one drive, select the system drive (where Windows is installed).

Now select all the temporary files and folders you want to delete. We recommend emptying the trash can, temporary internet files and thumbnails.

alt=Delete temporary files with disk clearance width=372 height=450 data-ezsrc= />Delete temporary junk from your system

Press OK to delete all files. Click Yes when prompted to confirm. After removing the dirt you can restart your PC and check if the problem is solved.

23. Changing TV audio settings

If you connect the computer to the TV through the HDMI port, try changing the audio settings to correct the HDMI sound that does not work. The settings may vary depending on the manufacturer and model number, so you can contact the helpdesk or consult the manual to find the sound settings.

Now change the default audio encoding setting to Auto or HDMI. Also Dolby mute. Once the changes have been made, you can reconnect your PC to the TV and check if you can hear the sound.

24. Resetting the TV settings

Sometimes you may experience the problem that HDMI audio does not work if the TV settings are not correct. You can restore the default settings to eliminate unwanted audio errors when connecting to a PC via HDMI.

To reset the settings, go to the TV settings and then to the system. Click on the Reset settings option. This may also vary depending on the manufacturer. If you cannot find the reset option, please refer to your TV’s owner’s manual or contact customer service.

25. HDMI audio does not work on Lenovo ThinkPad Yoga 12

If you have issues with HDMI audio on the Lenovo ThinkPad Yoga 12 after upgrading to Windows 10, you can manually update the audio drivers by following these steps.

Step one: Open the Lenovo Support page and click PC ➜ View PC Support.

Step two: Type ThinkPad Yoga 12 into the search box of the product and then click Download from the search results.

alt=click on download width=954 height=328 data-ezsrc= data-ez= />click on downloads

Step three: Click on Audio on the next page and download the Conexant CX22751 audio driver version or higher.

You can update the audio driver with the downloaded file and then reconnect the PC to the external device using the HDMI terminal. You’ll get the sound back.

26. Perform system repair

You can perform a system restore to make your computer work properly. When you install new software or update your Windows operating system, a restore point is created.

Your personal files and folders will not be deleted during this process, but the software installed after the restore point will be deleted. So make sure you have your references and a list of recently downloaded programs. Our system repair guide explains what it is and how to do it in a practical way.


The HDMI port is very useful when you want to display your notebook screen on a large screen, such as a projector and TV to enjoy a family movie or to present something to a larger audience. However, sometimes this function does not work as expected and causes problems when transferring audio to the connected device.

Well, it could be the audio and HDMI drivers or some temporary Windows problems. The above solutions will help you easily and conveniently fix HDMI audio that does not work on Windows 10. Just go through all the solutions and see which one works for you.

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