Kernel panics when disabling the microphone in Lenovo firmware

[TommyTran732]

How to file a helpful issue

Qubes OS release

4.2.1

Brief summary

On my Lenovo T14 Gen 1 (i7-10610), I get a kernel panic if I disable the Microphone in the firmware settings. It only happens with Qubes 4.2 and not Qubes 4.1.

Steps to reproduce

1. Go to Lenovo's firmware settings
2. Disable the Microphone in the "Port Access" section.
3. Boot the firmware

Expected behavior

The system boots as usual

Actual behavior

The kernel panics

[halobarrlets]

I had a similar issue:
#8574
I guess it's a bug in audio driver and you can report it here:
https://github.com/thesofproject/linux/
But first make sure that this issue persists in latest kernel 6.8.6 in Qubes OS current-testing repo and that it's not Qubes-specific and you have the same issue with e.g. Fedora with the same kernel.

For now you can try to fix the issue with this modprobe option in dom0:

echo "options snd-intel-dspcfg dsp_driver=1" | sudo tee /etc/modprobe.d/dspfix.conf 

https://thesofproject.github.io/latest/getting_started/intel_debug/introduction.html#pci-devices-introduced-after-2016