Bug 206851
Summary: | Strange issue... Kernel hangs since 5.4.19 and not when i disable mic in the BIOS | ||
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Product: | Drivers | Reporter: | Jean-Luc Livémont (jl.livemont) |
Component: | Sound(ALSA) | Assignee: | Jaroslav Kysela (perex) |
Status: | RESOLVED INVALID | ||
Severity: | high | CC: | tiwai |
Priority: | P1 | ||
Hardware: | Intel | ||
OS: | Linux | ||
See Also: | https://bugzilla.kernel.org/show_bug.cgi?id=206855 | ||
Kernel Version: | 5.5.8-200 | Subsystem: | |
Regression: | No | Bisected commit-id: |
Description
Jean-Luc Livémont
2020-03-14 06:19:04 UTC
I continued my investigations ... I found this workaround which allows me to leave the microphone on in the BIOS grubby --update-kernel="/boot/vmlinuz-5.5.8-200.fc31.x86_64" --args="snd-hda-intel.dmic_detect=0" The kernel 5.5.8 is now running (without microphone, of course... I am at your disposal to test firmware or kernel corrections on my architecture if necessary... I hope this issue will be fixed in the future kernel versions. :) Right, this is a known issue for some audio devices that has HD-audio DSP and DMIC. It's switched to SOF driver and you'd need proper firmware files in addition to the very recent version of alsa-lib and PulseAudio. In the recent kernel version (5.5 and later), the module switch was changed. Now the effectively same workaround is: snd-intel-dspcfg.dsp_driver=1 F31 requires to install latest alsa-firmware, alsa-ucm and pulseaudio packages for this hardware. Anyway, the hang looks suspicious. Create a Fedora bug for this with the kernel log. I'll check. |