Status for sound on Dell Chromebook 3120. On Ubuntu 22.04.2 (kernel
5.15.0-69-generic):
1. alsa-ucm-conf now seems to include the required UCM2 files. Hurrah!
2. you also need the firmware-sof-signed package, which you have to enable the
"restricted" apt repository to get. Some people enable "restricted" already,
when they install Ubuntu.
3. after a few minutes continuous playback the sound breaks (continuous beep).
This is fixed by adding the module/boot option snd_sof.sof_debug=1, as
described here: https://github.com/thesofproject/sof/issues/5437
Secondly, this system is affected by the same "after setting
snd_intel_dspcfg.dsp_driver=2 the Sound is Pitched down and too slow".
NOTICE: Upstream has suggested that future kernels will effectively
default to "snd_intel_dspcfg.dsp_driver=2" on this hardware. I.e. the
default would change from SOF to SST. If you have this "pitched down"
problem, my only solution is to change back using the boot/module option
"snd_intel_dspcfg.dsp_driver=3"
** Bug watch added: github.com/thesofproject/sof/issues #5437
https://github.com/thesofproject/sof/issues/5437
** Bug watch added: github.com/thesofproject/sof/issues #3868
https://github.com/thesofproject/sof/issues/3868
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https://bugs.launchpad.net/bugs/1871306
Title:
[SRU] No sound from internal card chtmax98090 (missing UCM2 files in
alsa-ucm-conf)
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