no sound, /dev/snd nearly empty

?

ProblemType: Bug
AlsaDevices:
 total 0
 drwxr-xr-x 2 root root 60 2009-09-24 00:01 by-path
AplayDevices: aplay: device_list:223: no soundcards found...
Architecture: amd64
ArecordDevices: arecord: device_list:223: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/by-path', '/dev/sequencer2', '/dev/sequencer', '/dev/seq'] failed with exit code 1:
Date: Thu Sep 24 21:02:21 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-11.42-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.28-11-generic x86_64