Windows 10 HDMI monitor shows video signal but doesn't show as audio device on Windows 10

  • Thread starter Thread starter Raul Sanjur
  • Start date Start date
R

Raul Sanjur

I have 4 monitors connected to a single RTX2060. I'm able to extract audio signal from all of them, from all ports at the same time via 3rd party software (Voicemeeter) that routes audio signal for each device without having to deal with Windows 10 sound configuration to "Listen to" a certain device (mainly because Windows 10 doesn't support delay correction).

Everything works great with audio sync'd until I turn off or restart the computer. After that, one of the monitors stops showing up as connected audio device, despite nVidia control panel showing it on "Setup Digital Audio" settings page from nVidia Control Panel. So nVidia clearly detects all four monitors as audio device, displays video signal without issues but Windows 10 doesn't detect one of them as audio device (the rest are fine). I have uninstalled and reinstalled latest drivers (for many months), but the issue still remains.

And because Windows 10 "thinks" there is no audio device connected, then it doesn't show up on Windows 10 Audio Control Panel as connected audio device and doesn't send audio to the monitor, hence, Voicemeeter being unable to pick that particular audio device. All of this despite Windows 10 detecting it as connected monitor and showing video signal just fine.

Here is the thing... If I put another monitor on the Display Port occupied by the monitor that isn't detected by Windows 10 as connected audio device, then It looses audio and the monitor that had the issue initially becomes detected when connected to another port. So there is always one monitor not being detected as connected audio device and eventually after plugging and unplugging connectors at random, all of them become detected and all start receiving audio signal just fine. So far I have been unable to replicate the steps needed to have the monitor start being recognized by Windows 10 as audio device.

Device Manager shows all monitors as Audio Device except the one that isn't recognized by Windows 10. All four monitors show as display device (after all, it's showing video). It's just the audio thing that must be reset somehow. A click on scan for hardware changes, nothing happens, click on hidden devices, it shows as previously installed device, but of course doesn't show as currently connected. I click on update driver but it says everything is up to date and if I uninstall the driver for that particular monitor, then later on it becomes an issue to try to have it recognized.

Before it was another monitor that had the same issue...

Continue reading...
 
Back
Top