Some people have said this works:
Code:
echo 'options snd-hda-intel model=laptop' | sudo tee -a /etc/modprobe.d/options
Reboot and see.
Others have said you need thisCode:
sudo aptitude --purge reinstall linux-sound-base alsa-base alsa-utils libasound2
I've modified it to accommodate Navigatrix's custom kernel, but give that a try, and reboot, if all else fails.
If we strike out, we can look deeper with more information.