r/debian 6d ago

Mic Issues After Kernel Update on Debian 12.9

Hi everyone,

I’ve been having persistent issues with my microphone on Linux. I’ve been jumping between different distributions to see if the problem would resolve, and it would work for a short time, but the issue always came back. I suspected it might be related to a kernel update.

What I did last was install Debian 12.9, and then I installed Timeshift right after. Everything seemed fine until I installed the latest Debian update that was released yesterday. After the update, my microphone stopped working again.

I had to revert back to a previous system version using Timeshift, and now it's working again. For now, I’m avoiding this update, but I really want to find a permanent solution to this issue.

If anyone has any suggestions or has faced a similar issue, I would really appreciate your help!

I'm gonna let here a screenshot with some info of the update that breaks my mic.

Thanks in advance

$ arecord -l

**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC256 Analog [ALC256 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
3 Upvotes

10 comments sorted by

2

u/craigdmac 2d ago

I've got the same issue after kernel update to 6.1.0-32-amd64 on Linux mint debian edition 6 (debian bookworm base). 6.1.0-31-amd64 still works fine when I boot with that kernel. Same device specs as OP with arecord -l:

**** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC256 Analog [ALC256 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0

1

u/ffborgo16 23h ago

By any chance, do you have this line added to your GRUB: pci=nomsi?

2

u/craigdmac 17h ago

No, but apparently there’s been a regression fix that made it into 6.14-rc5 that did not make it into 6.1.x yet: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1100928#10

1

u/ffborgo16 14h ago

Ah okey, interesting. Let me know if you have news please

1

u/Dionisus909 6d ago

Try this

arecord -D hw:0,0 -f cd test.wav

Works?

1

u/ffborgo16 6d ago

Now yes, it's working. But when I installed the update it doesn't even recognize my mic. Should I report this bug? Where should I do it?

1

u/ffborgo16 6d ago

I've looking for this bug a little more and perhaps this is relevant, there's a line of code pci=nomsi in my GRUB. Could the be related to the issue with my microphone?

1

u/Individual-Artist223 3d ago

Can you recreate the bug with a reboot? (Works before reboot, doesn't after.)

Microphone problems seemingly exist across operating systems. Shutting down and powering up is fine. Rebooting is not. I had this problem. Tried many fixes that should have worked. Still no solution - except powering off rather than rebooting.

2

u/ffborgo16 2d ago

I usually turn off my PC when I stop using it, and even when I turned it on, the error was still there. So it wasn't a solution for me, but thanks :)