Comment 0 for bug 320798

Sound used to work with 8.04 and 8.10 (usually after unmuting a channel), but I can't get jaunty alpha 3 to play any sound.
The hardware is a hp hdx9480 laptop with a Intel HDA chipset. (tIntel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog])
I checked all channels with alsamixer and alsamixer -D hw:0 and I can't find any muted channel.

Other information:

stef@hape:~$ cat /proc/asound/cards
 0 [Intel ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xec004000 irq 23

I tried to check whether sound works with aplay /usr/share/sounds/alsa/Noise.wav. It reports no errors and the volume bar in pavucontrol shows that music is playing.

 stef@hape:~$ ps ux | grep pulse
stef 5807 2.9 0.1 366408 7572 ? Ssl 12:14 0:30 /usr/bin/pulseaudio --start
stef 5808 0.0 0.0 65972 3040 ? S 12:14 0:00 /usr/lib/pulseaudio/pulse/gconf-helper
stef 7090 0.0 0.0 7488 904 pts/1 S+ 12:31 0:00 grep pulse

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: linux-image-2.6.28-5-generic 2.6.28-5.15
ProcCmdLine: root=UUID=664a01ac-b4a2-473b-b9b1-20664b3cb8f3 ro quiet nosplash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-5.15-generic
SourcePackage: linux