Public bug reported:
There is no sound coming from the speakers when I play a sound file, but
the usb headphones work fine. After I type
sudo alsa force-reload
the sound is working again (after I then unmute the sound in the mixer).
I get these errors in syslog:
Jul 11 00:10:17 my-desktop pulseaudio[3554]: alsa-sink.c: ALSA woke us up to
write new data to the device, but there was actually nothing to write!
Jul 11 00:10:17 my-desktop pulseaudio[3554]: alsa-sink.c: Most likely this is a
bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA
developers.
Jul 11 00:10:17 my-desktop pulseaudio[3554]: alsa-sink.c: We were woken up with
POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value
< min_avail.
Jul 11 00:10:57 my-desktop pulseaudio[4470]: alsa-sink.c: ALSA woke us up to
write new data to the device, but there was actually nothing to write!
Jul 11 00:10:57 my-desktop pulseaudio[4470]: alsa-sink.c: Most likely this is a
bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA
developers.
Jul 11 00:10:57 my-desktop pulseaudio[4470]: alsa-sink.c: We were woken up with
POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value
< min_avail.
ProblemType: Bug
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: yuttadhammo 4463 f.... mixer_applet2
Card0.Amixer.info:
Card hw:0 'default'/'C-Media USB Headphone Set at usb-0000:00:1d.1-2, full
speed'
Mixer name : 'USB Mixer'
Components : 'USB0d8c:000c'
Controls : 7
Simple ctrls : 3
Card1.Amixer.info:
Card hw:1 'Intel'/'HDA Intel at 0xf0400000 irq 22'
Mixer name : 'Nvidia MCP78 HDMI'
Components : 'HDA:10ec0888,1025015e,00100202
HDA:14f12c06,1025015e,00100000 HDA:10de0006,10de0101,00100000'
Controls : 37
Simple ctrls : 21
Date: Sat Jul 11 00:28:08 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-2.16-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.31-2-generic x86_64
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
no sound on startup
https://bugs.launchpad.net/bugs/398085
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