Quote Originally Posted by BicyclerBoy View Post

This should have worked before..regardless of the .asoundrc file.
speaker-test -l 2 -c 6 -r 48000 -D hw:1,7
speaker-test -l 2 -c 2 -r 48000 -D hw:1,7

Mythbuntu does use Xfce as its default desktop ?
Yes, it is xfce.
I remember doing the above test, and never got any sound.
I can try again just to see what happens.