no alsa sound, only oss

[Greg A]

Under System->Preferences->Sounds I must select OSS to hear anything. Pulseuaudio streams shows up in pauvcontrol but are not audible. (This is under karmic.)

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: greg 5392 F.... mixer_applet2
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xdffdc000 irq 16'
   Mixer name : 'SigmaTel STAC9227'
   Components : 'HDA:83847618,102801db,00100201'
   Controls : 36
   Simple ctrls : 23
Card1.Amixer.info:
 Card hw:1 'U0x46d0x8b3'/'USB Device 0x46d:0x8b3 at usb-0000:04:04.1-2, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:08b3'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined
   Capture channels: Mono
   Limits: Capture 0 - 3
   Mono: Capture 2 [67%] [50.00dB] [on]
Date: Fri Jul 10 17:03:37 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-2.16-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.31-2-generic i686