Public bug reported:
Although all volume controls are set to maximum (Front,PCM,Master), all sound
playback gets quieter until muting in about 15s after startup. Adjusting the
volume, both with "alsamixer -c 0" and the Volume Control applet, does not help.
This is a fresh install of Ubuntu 9.04, sound works fine with 8.04.
aplay -l gives the following output:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
lspci -v gives the following output:
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio
Controller (rev 02)
Subsystem: Dell Device 01dd
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at dfddc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
** Affects: ubuntu
Importance: Undecided
Status: New
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Sound gets quieter fast after boot and cannot be turned up
https://bugs.launchpad.net/bugs/366283
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