I've installed Ubuntu 12.04 with xfce on my ARM Samsung Chromebook 3 using Crouton. The sound is not working however. When I try to configure the sound using GStreamer I get
GStreamer was unable to detect any sound devices. Some sound system specific GStreamer packages may be missing. It may also be a permissions problem.
The fixes I've found through so far haven't helped.
Similar to this user here, I can't find how to implement this fix. https://askubuntu.com/questions/413293/samsung-arm-chomebook-no-sound-in-dual-os-with-crouton