Public bug reported:
Since about 3 days ago, after a certain period of time of using the
audio output (whatever the program, either totem, vlc, flash, and
whether with a single user connected since boot or with a second user
session opened) the audio changes abruptly to a mix of cracks and rings
(listen to the attached audio output). Nothing seems to correct the
problem, even though I've managed to get the audio back to normal once
by closing all audio applications for a while and trying again.
The computer has an ICH10 Intel controller (GB EP-45 DS4). The computer
is also affected by bug #433654, but the problem reported here wasn't
there before (using Karmic since Alpha 4) and appears even if only one
user is connected after boot.
I've left Totem open with the problem while reporting the bug with
ubuntu-bug. Computer has all updates, and was just booted 20 min ago,
with Totem playing audio for about the same time before the problem
occurred, and a single logged in.
ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: t3g 2059 F.... pulseaudio
/dev/snd/pcmC0D0p: t3g 2059 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xea300000 irq 22'
Mixer name : 'Realtek ALC889A'
Components : 'HDA:10ec0885,1458a002,00100101'
Controls : 38
Simple ctrls : 21
Date: Mon Oct 5 19:03:43 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.38-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.31-11-generic i686
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 regression-potential
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[Karmic] HDA Intel: sound messed up after a while (cracks, rings, no other
audio possible)
https://bugs.launchpad.net/bugs/443293
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