please go through this file/link and help in getting sound...?

http://www.alsa-project.org/db/?f=06a0ada03548709aa6a6573bd1257f85af89cd19

I had to go through this guide:

SDB:AudioTroubleshooting - openSUSE

to make sound work on my 11.1. I suggest you try this and report where you get stuck.