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

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...

:)

 

HDMI Windows 10 not showing in playback devices

Hi Inderpal,

For better assistance, we'd like to know the following:

• When did you start encountering the issue?
• Have you tried using another monitor on the same computer?

We're looking forward to your reply.

 

not showing hdmi audio playback option

Hello Brahmanandarath,

I would suggest you to follow the steps and check if it helps. First check if “HDMI Output” is selected as the default device.

• Click Start and select Control Panel.
• On the right hand side of the screen, under View by: click the drop-down icon and select Large icons.
• Click Sound.
• If you do not have the HDMI Output listed under “Playback” tab, right click in the
  playback window and select Show Disabled Device and
  Show Disconnected Device.
• If the HDMI Output option appears, right-click HDMI Output
  and select Default Device.
• Now the audio must be playing on HDMI.

Also try updating the recent HDMI drivers from the manufacturer’s website and check if the issue is resolved.

Click on the link below for more information on updating the drivers.

How to: Install and Update Hardware Drivers in Windows 10

You may also unplug and plug in back the HDMI output and check.

Hope this information is helpful.

 

Monitor showing up as audio endpoint

What video card do you have.

Open audio settings and disable all audio output sources except your main audio & Microphone of you want that enabled.

unplug monitor, restart PC is this is a 2nd monitor. If not, then plug monitor back in and see what happens!

I had this happen a couple months ago on someone's PC.

You also might have to go to Device Manager & select the show all devices in the menu above.

Then plug in the monitor OR look and see if your Monitor is showing properly as a monitor & if the audio is showing for the HDMI connection.

You might have to uninstall the drivers & reinstall them & restart PC