You probably have the
SigmaTel STAC9205 HD Audio / Intel-HDA.
There are a couple different ways to get this working. This is the one that worked best for me and should get the sound running for any Latitude D830 or D630 in Ubuntu Gutsy 7.10:
1. Install the linux-backports-modules-generic package. In terminal:
QUOTE:
sudo aptitude install linux-backports-modules-generic
2. Edit your alsa-base file to fix the volume automatically increasing:
QUOTE:
sudo gedit /etc/modprobe.d/alsa-base
At the end of the file that opens up, paste in this line:
QUOTE:
options snd-hda-intel model=dell-m42
3. Save and reboot.
You should here the congos playing once the login screen shows up. The sound is a little wonky for volume adjustment but perfectly usable. Now, if I could just figure out how to turn off the congos...