Samsung Chromebook Pro (Caroline) - setup-audio not working

[waaa1y]

Hi,

I'm having issues with setup-audio on a Samsung Chromebook Pro (Caroline). I've been doing a lot of troubleshooting and keep running into more issues, so I rebuilt breath today and have done the following (based on similar issues I've seen posted here):

Ran aplay -l from in ChromeOS (chronos_aplay.txt)
Created a new image using Gnome and Ubuntu
Booted breath and connected to wifi
Ran sudo alsa-info (alsa-info-1.txt)
Shut down breath and ran VERSION=ALT bash updatekernel.sh on the device used to build the image
Booted breath again and ran sudo alsa-info again (alsa-info-2.txt)
Ran setup-audio (setup-audio-1.txt)
Ran sudo umount /mnt; rm -rf /usr/share/alsa/ucm2/kblda7219max*
Ran setup-audio again (setup-audio-2.txt)
Ran dmesg (dmesg.txt)
Ran sudo alsa-info again (alsa-info-3.txt)

setup-audio errors each time with cp: cannot stat '/mnt/usr/share/alsa/ucm*/kblda7219max.nami': No such file or directory.
Running aplay -l in breath shows no soundcards detected.

On a different attempt (not this time) I tried exporting the SND_CARD, SND_BOARD, and SND_MODULE but setup-audio still shows the same error with "kblda7219max.nami", so it seems the exports are not recognised by setup-audio.

Any advice on what to do from here? Let me know what other details you need.

alsa-info-1.txt
alsa-info-2.txt
alsa-info-3.txt
chronos_aplay.txt
dmesg.txt
setup-audio-1.txt
setup-audio-2.txt
.