WeirdTreeThing
Chell: No audio after kernel update (Arch)
Describe the bug After upgrading my kernel from 6.15.x to 6.16.x, I no longer have working audio and only have a Dummy Output in PulseAudio.
It seems to stem from something being wrong with at least one of the ucm2 configs as the first line I get when the script calls alsactl init is this:
"alsa-lib main.c:1554:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2"
Under /usr/share/alsa/ucm2 I've tried removing stuff that would have come from the script (eg. anything from /tmp/alsa-ucm-conf-cros) before running the script again to no avail but I could well have missed something as I'm not very well versed in alsa configuration.
Distro name and version Arch Linux
Boardname Chell
Logs
debug-logs-Chell-2025-08-16_12h33m.tar.gz
Having the same issue but on the Shyvana board, using pipewire as audio server
I can get speaker output using the following list of commands, but it's not the most useful thing
speaker-test -Dhw:1 -c2 # Built-in speaker
speaker-test -Dhw:2 -c2 # Headphone jack
Looks like intel renamed the card name for every avs board without shipping the ucm fix in time needed for it to work right.
I've just added a workaround to the script. It works here on my cave running a fresh install of arch.
Having the same issue with latest script (same alsa error message, no audio).
Boardname CAROLINE, Arch Linux, kernel 6.16.2, pipewire.
debug-logs-Caroline-2025-08-24_02h11m.tar.gz
Edit: Downgraded kernel to 6.15.9 and nothing changed (no sound, same error message when running script). @WeirdTreeThing, what is the latest Arch Linux release that your script supports on CAROLINE?
Late response, I know, but I just got back into messing around with my Chell and the workaround in the updated script works fine for me.
WeirdTreeThing, I'm a Pulseaudio user.
@finalglyph your audio logs look fine. Are you able to select the "Default" profile for each audio card in a program such as pavucontrol?
@WeirdTreeThing, thanks for looking at the logs.
I make a mistake. Sound is actually working. I assumed it wasn't because KDE Plasma wasn't showing any sound-related settings (fixed by installing some packages) and the "speaker-test" commands posted above failed with "no such device" (running "speaker-test" without arguments worked).
Sorry for the false alert.
... and the "speaker-test" commands posted above failed with "no such device" (running "speaker-test" without arguments worked).
My bad, I just posted those commands because they worked for me. For future readers: your results may vary