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I'm using a Chromebook and I've installed Ubuntu on it with Crouton... My sound is fine when I'm in my Chrome OS but I have no sound at all when I'm in Ubuntu. Uhhhh... what do you think?

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2 Answers 2

I too faced this issue. The below steps solved the issue.

First remove pulseaudio and alsa-base packages:

sudo apt-get remove --purge pulseaudio alsa-base

Now re-install alsa-base:

sudo apt-get install alsa-base

Logout from Ubuntu and log in again...

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One question - this fixes sound, but the indicator-sound-gtk2 package depends on pulseaudio, so removing pulseaudio removes the sound indicator. Is there any way you know of to get indicator-sound-gtk2 back, or to fix the sound without removing pulseaudio? –  DaboRoss Oct 25 '13 at 5:15
    
This didn't work for me on Ubuntu/saucy running on an SD Card (i.e. without crouton. It was a chrubuntu install, now its basically a plain Ubuntu install). –  Hans-Christoph Steiner Oct 31 '13 at 4:30

I found the answer on the Debian wiki page about the Samsung Chromebook. There were two things I had to do on my Samsung Chromebook 5 running Ubuntu/saucy. In Ubuntu, I've mounted the ChromeOS system on /media/root-a.

  1. copy some alsa support files from Chrome: cp /media/root-a/usr/share/alsa/ucm/DAISY-I2S/HiFi.conf /usr/share/alsa/ucm/DAISY-I2S
  2. edit /etc/pulse/default.pa to add this line: load-module module-alsa-sink device=sysdefault

Then I rebooted and I had working audio!

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