So you can try updating the drivers to resolve the problem. The audio would not work if there is problem with the sound drivers or the display audio drivers. If no problem is found there, connect the monitor to another PC. Check and make sure the monitor’s speaker volume is not turned down or muted. If your PC has more than one HDMI output ports, plug the cable to another port and see if the problem persists.ģ. Use another cable to connect the display monitor to your PC.Ģ. Test the related hardware devices in following order.ġ. The problem would be caused by broken hardware devices.
Realtek HD Audio Codec Driver 2.7 32-bitįor Windows Vista, Windows 7, Windows 8, Windows 8.If you can’t get sound to play through HDMI in Windows 7, you can try solutions in this post. Realtek HD Audio Codec Driver 2.79 64-bit. Realtek HD Audio Codec Driver 2.80 for Windows Vista/7/8/10 (). Select "Control Panel" in "Windows System" At the end of the procedure, select to restart the system and press to complete the uninstallation. Select "Realtek High Definition Audio Driver" and press button. It will install audio driver automatically after computer restarted. Once after the original driver removed, reboot the computer. Click "Next" to remove the original audio driver in your system. Run setup.exe, it will remove the original driver in your system. Follow Step 2,3,4 described in above to complete the procedure. Finally, select to restart the system and press to complete the installation. If the Windows popup "Windows can't verify the publisher of this driver software" message, press "Install this driver software anyway" to continue the installation. If the screen resolution is lower than 1024*768,press to continue the installation. Run the setup.exe program to start the installation. 
If the Windows popup "Digital Signature Not Found" message, press to continue the installation.
Before installing the Realtek High Definition Audio Driver, Press the button if Windows detect the Multimedia Audio device.
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