Computer won't sleep after Power Options criteria are met

My computer should go to sleep after 30 minutes plugged in - and go into hibernation after 180 minutes plugged in. However, after waiting overnight, it is still "awake" with no apps running.

I ran "powercfg /requests" and this was the result:

SYSTEM:[DRIVER] Realtek High Definition Audio (HDAUDIO\FUNC_01&VEN_10EC&DEV_0292&SUBSYS_102805CD&REV_1000\4&2fb669a9&0&0001)An audio stream is currently in use.SYSTEM:

I can't find what this audio stream is. Can anyone help? Thank you.

Tried to run the command - but it didn't execute (powershell / Administrator). Could there be something wrong with the syntax? Perhaps the argument of the Realtek driver? Thank you.

BubbaW said:

For starters, I would run the below override and set sleep for shorter time, 1, 2 3 minutes and see if works. If so, I would give thought to some things you might be using....Steam, Trillion, input single from microphone etc and disable them one by one until something is found !

powercfg /requestsoverride Realtek High Definition Audio System

I made sure I had no apps at all running before I posted. I even checked the Task Manager to be sure. Thank you.

steve108 said:

Did you have a web browser open or media player open? I would try closing them if open, then run the "powercfg /requests" command a two minutes later and see if it still shows ".... Realtek ....".

- - - Updated - - -

Perhaps you mean for me to use the name of the actual driver in place of Realtek High Definition Audio? If so, I don't know how to find the name of the driver. Thank you.

BubbaW said:

For starters, I would run the below override and set sleep for shorter time, 1, 2 3 minutes and see if works. If so, I would give thought to some things you might be using....Steam, Trillion, input single from microphone etc and disable them one by one until something is found !

powercfg /requestsoverride Realtek High Definition Audio System

This command didn't return any message at all - just went right back to the prompt. Is the syntax correct? Thank you.

steve108 said:

From what you posted, try this all on one line:
powercfg /requestsoverride DRIVER "HDAUDIO\FUNC_01&VEN_10EC&DEV_0292&SUBSYS_102805CD&REV_1000\4&2fb669a9&0&0001" SYSTEM

Rebooted and ran the command again - don't understand the error message. Here's the screenshot. Thank you.

steve108 said:

Yes, unfortunately that's correct. Restart your PC for it to take effect and see if the issue is resolved.