Hello, just trying to give back to the linux community since I have received sooo much guidance from these forums.

Background info:
Using MythBuntu Intrepid

Problem:
While trying (still working on) to get sound to work over HDMI, running the alsamixer command generated this error:

alsamixer: function snd_ctl_open failed for default: No such device

Solution:
aplay -l to see list of available sound cards/devices
asoundconf set-default-card 0 (use which ever card number you would like based on previous command) it will warn you if you try to run as root- I took the safe bet and ran as normal user.

now alsamixer works fine.

Hope this helps someone, I have found sound problems to be especially frustrating !