I'm using 12.10 Quantal with Openbox and a .xinitrc script at login instead of a display manager.
It's a relatively fresh install and I noticed when I opened pavucontrol the only output was a dummy one. I checked around and it appears that my sound card is physically installed but Pulseaudio isn't detecting it. I'm really unsure of what I should do but any help getting my audio back would be appreciated.
Edit: further info if its at all useful:
dante@dante-ubuntu:~$ uname -a && aplay -l && cat /proc/asound/version && head -n 1 /proc/asound/card*/codec#* Linux dante-ubuntu 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux aplay: device_list:252: no soundcards found... Advanced Linux Sound Architecture Driver Version 1.0.25. ==> /proc/asound/card0/codec#0 <== Codec: ATI R6xx HDMI ==> /proc/asound/card1/codec#0 <== Codec: IDT 92HD81B1X5