Re: internal microphone stops working

[songbird <songbird@anthive.com>]

Janet C wrote:
> Hello,
>
> I'm running bookworm on a Thinkpad T14s Gen4 AMD and am having an issue with the internal microphone. Using the kernel from bookworm, the microphone doesn't work at all, so I installed kernel 6.12 from backports. Now the microphone works when I boot, but at some point, it stops working until I reboot. I haven't been able to find any pattern in when it stops working. And when it stops, it's still detected (for example, I see it in pavucontrol, and the configuration is unchanged) but it doesn't seem to register any input (in pavucontrol, the VU meter doesn't move, and I can't record audio in any applications). I'm using pipewire.
>
> Any suggestions for how I can go about diagnosing the issue? I've tried restarting pipewire and wireplumber, but that doesn't do anything; the only way I've found to get the microphone working again is to reboot.
>
> Below is the relevant output from pactl list cards; it's the same when the microphone is working and when it isn't working.
>
> Thanks for any ideas,
> Janet

  i wonder if some power management is putting it to sleep
or some timer is timing out.  maybe check bios settings for
power management, screen savers, etc.

  they can all not play very well together.  :(  (you know
the old saying about too many chefs in the kitchen...)


  songbird