Lenovo Yoga C630 Pantheon "no DMIC ep_blob found" in dmesg

[paulmcauley]

I get the following error repeated numerous times in my dmesg:

[   21.234475] snd_soc_avs 0000:00:1f.3: no DMIC ep_blob found
[   21.234479] snd_soc_avs 0000:00:1f.3: module-type create failed: -2
[   21.234481] snd_soc_avs 0000:00:1f.3: error creating module -2
[   21.234585] snd_soc_avs 0000:00:1f.3: create path failed: -2
[   21.234586] snd_soc_avs 0000:00:1f.3: ASoC: error at snd_soc_dai_hw_params on DMIC Pin: -2
[   21.234590]  DMIC: ASoC: error at __soc_pcm_hw_params on DMIC: -2
[   21.234593]  Digital Microphone: ASoC: error at dpcm_fe_dai_hw_params on Digital Microphone: -2

Otherwise, most audio works well. The internal microphone is, however, quite quiet and the headphone detection/switching can sometimes be intermittent.

Boardname
Pantheon / nami
Operating System: Fedora Linux 39
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11
Kernel Version: 6.5.12-300.fc39.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
Manufacturer: Google
Product Name: Pantheon
System Version: 1.0

[WeirdTreeThing]

That error is only there because of pipewire weirdness, so you can just ignore it. The headphone switching is also just an audio server quirk. As for your mic being quiet, you may need to set the volume to over 100%. ChromeOS has a special value in ucm that lets them do that, we can't do that with a regular audio server though.