** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/332631
Title:
pulseaudio errors, sound/audio bugs
Status in linux package in Ubuntu:
Won't Fix
Bug description:
I see a few errors coming from syslog, etc. regarding sound problems.
The problem I see is in the volume slider, in the upper desktop pull-
down menu. When I grab the slider and go up, it starts to jump and not
move smoothly, then I get distorted 'pops' out of my speakers. The
lower volume levels seem ok, but I think that there is something going
on after seeing my error logs. Seems that pulseaudio and my sound
drivers don't quite work right.
Using a M2N-SLI ASUS board, with stock audio. Motherboard drivers are
nVidia and C-Media. I have the drivers disk with some Linux code, if
needed.
Syslog:
Feb 21 11:21:48 X-PuTeR pulseaudio[5424]: alsa-util.c: Cannot find fallback
mixer control "PCM" or mixer control is no combination of switch/volume.
Feb 21 11:21:49 X-PuTeR pulseaudio[5424]: module-alsa-source.c: Your kernel
driver is broken: it reports a volume range from -16.00 dB to -16.00 dB which
makes no sense.
Messages Log:
Feb 16 14:40:03 X-PuTeR pulseaudio[7586]: pid.c: Stale PID file, overwriting.
Feb 16 14:40:03 X-PuTeR pulseaudio[7586]: alsa-util.c: Cannot find fallback
mixer control "PCM" or mixer control is no combination of switch/volume.
Feb 16 14:40:03 X-PuTeR pulseaudio[7586]: module-alsa-source.c: Your kernel
driver is broken: it reports a volume range from -16.00 dB to -16.00 dB which
makes no sense.
Feb 16 14:40:18 X-PuTeR pulseaudio[7586]: module-alsa-sink.c: Increasing
wakeup watermark to 5.99 ms
Feb 16 14:43:49 X-PuTeR pulseaudio[7586]: module-alsa-sink.c: Increasing
wakeup watermark to 11.97 ms
Feb 16 14:44:00 X-PuTeR pulseaudio[7586]: module-alsa-sink.c: Increasing
wakeup watermark to 17.01 ms
Feb 16 14:58:40 X-PuTeR kernel: [ 75.279239] warning: `pulseaudio' uses
32-bit capabilities (legacy support in use)
Feb 16 14:58:41 X-PuTeR pulseaudio[3815]: alsa-util.c: Cannot find fallback
mixer control "PCM" or mixer control is no combination of switch/volume.
Feb 16 14:58:41 X-PuTeR pulseaudio[3815]: module-alsa-source.c: Your kernel
driver is broken: it reports a volume range from -16.00 dB to -16.00 dB which
makes no sense.
Feb 16 22:26:48 X-PuTeR pulseaudio[10958]: pid.c: Stale PID file, overwriting.
Feb 16 22:26:48 X-PuTeR pulseaudio[10958]: alsa-util.c: Cannot find fallback
mixer control "PCM" or mixer control is no combination of switch/volume.
Feb 16 22:26:49 X-PuTeR pulseaudio[10958]: module-alsa-source.c: Your kernel
driver is broken: it reports a volume range from -16.00 dB to -16.00 dB which
makes no sense.
Feb 17 15:46:46 X-PuTeR kernel: [ 33.056478] warning: `pulseaudio' uses
32-bit capabilities (legacy support in use)
Feb 17 15:46:46 X-PuTeR pulseaudio[3861]: alsa-util.c: Cannot find fallback
mixer control "PCM" or mixer control is no combination of switch/volume.
Feb 17 15:46:47 X-PuTeR pulseaudio[3861]: module-alsa-source.c: Your kernel
driver is broken: it reports a volume range from -16.00 dB to -16.00 dB which
makes no sense.
etc,etc,etc... through today:
Feb 21 11:21:48 X-PuTeR pulseaudio[5424]: pid.c: Stale PID file, overwriting.
Feb 21 11:21:48 X-PuTeR pulseaudio[5424]: alsa-util.c: Cannot find fallback
mixer control "PCM" or mixer control is no combination of switch/volume.
Feb 21 11:21:49 X-PuTeR pulseaudio[5424]: module-alsa-source.c: Your kernel
driver is broken: it reports a volume range from -16.00 dB to -16.00 dB which
makes no sense.
Sound for the most part is working ok. I also get random results/movement
from the sliders on the main volume control page. When I try to turn up the
PCM, etc the movement is choppy and sometimes the link between left and right
channels 'breaks' and I have to try to get them back together manually.
Running the Jaunty Alpha 4 - Kernel 2.28.8
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