I have just installed ubuntu 12 and I am not hearing anything. The alsa info dignostic tool command output is put here: http://www.alsa-project.org/db/?f=ba499573f672309636489535508a9446c277a2a3
Update: Its not that the sound is absolutely absent. It is basically stuttering a LOT.
And yes, there's no mute or anything.
Appreciate any help on this. This is so frustrating, it seems this is going to be the dealbreaker here.