Correction - the "options snd-hda-intel enable_msi=1" workaround works for me (Ubuntu 8.10, HP dv7-1080ew). Like umer suggested, I had one of the outputs muted in the mixer.
Correction - the "options snd-hda-intel enable_msi=1" workaround works for me (Ubuntu 8.10, HP dv7-1080ew). Like umer suggested, I had one of the outputs muted in the mixer.