Just a note, I have a Toshiba A135 laptop. I just upgraded to Ubuntu 7.04. After rebooting from the upgrade I lost sound. Previously I would only lose sound when I suspended the system. After the upgrade there was no sound. I used the above solution:
edit /etc/modprobe.d/alsa-base and add "options snd-hda-intel model=3stack"
Now I have sound. The volume isn't that great but good enough to work with.
Just a note, I have a Toshiba A135 laptop. I just upgraded to Ubuntu 7.04. After rebooting from the upgrade I lost sound. Previously I would only lose sound when I suspended the system. After the upgrade there was no sound. I used the above solution:
edit /etc/modprobe. d/alsa- base and add "options snd-hda-intel model=3stack"
Now I have sound. The volume isn't that great but good enough to work with.