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I am running Ubuntu 15.10 on an Acer CB3-111-670 Chromebook. I am running directly off of the internal ssd after following this guide: https://wiki.galliumos.org/Installing/Preparing#Bay_Trail and installing this custom firmware: https://wiki.galliumos.org/Support/BayTrail Then instead of booting the GalliumOS USB (it wasn't recognized,) I booted from my Ubuntu 15.10 USB instead.

Everything works out of the box except audio. Under 'Sound' settings, my 'Speakers' show up as byt-max98090, but when I press 'test sound' no audio is heard. Also Youtube videos play fine, but again, no sound.

Just wondering if there is a workaround for getting the audio to work?

Thank you!

vim_usr
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2 Answers2

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https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1833116

git clone https://github.com/plbossart/UCM.git
cd UCM
cp -r chtmax98090/ /usr/share/alsa/ucm/
alsactl store

after reboot sound card should be detected

https://askubuntu.com/a/1152918/968224

Jaime Perez
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I found the solution by following these instructions. The only thing I did differently was run:

sudo alsa force-unload (as mentioned by Parker J. Stone in the comments.)

INSTEAD OF the original step of running: sudo killall alsactl

to kill alsa. All other steps were ran as written by the OP.

Here is the link:

https://plus.google.com/+JamesFuBEEFCAKE/posts/Tf4Pc5Z8reH

Also note: upon reboot after following the mentioned instructions, I got the drum sound from Ubuntu. Then after logging in, I tried to play a YouTube video and got no sound. I clicked on my sound card in 'Sound' under 'System Settings' then clicked on 'Test Sound' and heard "left speaker" as well as "right speaker." After doing this, I went back to YouTube and the video played correctly with sound! Thus far, everything is working GREAT!

vim_usr
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