Go to ALSA.org and get 0.8 I think it is. I have the same chipset on my laptop and it will work once you follow the install steps.
I got these from some where ....
You need to download 4 packages : alsa-driver, alsa-lib, alsa-oss and alsa-utils - get verson 1.08 from http://www.alsa-project.org/
- (see top right of page for links)
extract all of files
tar -xf alsa-driver-1.0.8.tar
tar -xf alsa-lib-1.0.8.tar
tar -xf alsa-oss-1.0.8.tar
tar -xf alsa-utils-1.0.8.tar
Now complete the following. Now this will differ from what is listed on the alsa website for intel sound cards, you will not be specifying a card type. You will need to be root for this. So 'su' into root.
now just to be sure that everything is set right you will want to run snddevices
after this reboot the machine.
After the machine has come back up. From the shell run 'alsamixer' and change your volume settings. Or just go to the sound icon on the panel and adjust them there.
And make sure your speakers are actually plugged in. I forgot to make sure and thought this whole process didn't work.
The above worked for me but I still can't adjust the volume and had to use software volume adjustment in XMMS - these cards / chip sets are still so new - you might have to get an older more compatible know to work one!
Hope this helps and thanks to whom ever I copied these instruction from too!