Bug#611367: If user is in audio-group, pulseaudio crashes in multi soundcard setup

Daniel Gasser gasser at websource.ch
Fri Jan 28 13:38:12 UTC 2011


Package: pulseaudio
Version: 0.9.21-3+b1
Severity: important
Tags: patch

In my setup, i'm using the built in intel hda soundcard. Attached to the usb port, 
i've got a midi interface (Midisprot 2x2).
If the current user is member of the audio group, pulseaudio crashes always 
after ten minutes of playing sound with any application. The application looses it's 
connection to pulseaudio and i don't hear any sound until i restart that application.

My /var/log/sylog contains the following error message:
pulseaudio[6370]: module.c: Failed to load  module "module-alsa-card" (argument: "device_id="1" name="usb-0763_1002-00-M2x2" card_name="alsa_card.usb-0763_1002-00-M2x2" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1""): initialization failed.

With the same logging time, /var/log/messages says:
pulseaudio[6370]: pid.c: Stale PID file, overwriting.

The next line in syslog is then:
pulseaudio[6376]: pid.c: Daemon already running.

Soluten (callin it the "patch" ;-):
The solution to the problem was to delete my current user from the audio group.
This stops pulseaudio from trying to load the "module-alsa-card" every ten minutes.


-- System Information:
Debian Release: 6.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.33.7.2-rt30-1-amd64 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=de_CH.UTF-8, LC_CTYPE=de_CH.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages pulseaudio depends on:
ii  adduser                 3.112+nmu2       add and remove users and groups
ii  consolekit              0.4.1-4          framework for defining and trackin
ii  libasound2              1.0.23-2.1       shared library for ALSA applicatio
ii  libc6                   2.11.2-9         Embedded GNU C Library: Shared lib
ii  libcap2                 1:2.19-3         support for getting/setting POSIX.
ii  libdbus-1-3             1.2.24-4         simple interprocess messaging syst
ii  libgdbm3                1.8.3-9          GNU dbm database routines (runtime
ii  libice6                 2:1.0.6-2        X11 Inter-Client Exchange library
ii  libltdl7                2.2.6b-2         A system independent dlopen wrappe
ii  libpulse0               0.9.21-3+b1      PulseAudio client libraries
ii  libsamplerate0          0.1.7-3          Audio sample rate conversion libra
ii  libsm6                  2:1.1.1-1        X11 Session Management library
ii  libsndfile1             1.0.21-3         Library for reading/writing audio 
ii  libspeexdsp1            1.2~rc1-1        The Speex extended runtime library
ii  libudev0                164-3            libudev shared library
ii  libx11-6                2:1.3.3-4        X11 client-side library
ii  libxtst6                2:1.1.0-3        X11 Testing -- Record extension li
ii  lsb-base                3.2-23.2squeeze1 Linux Standard Base 3.2 init scrip
ii  udev                    164-3            /dev/ and hotplug management daemo

Versions of packages pulseaudio recommends:
ii  gstreamer0.10-pulseaudio     0.10.24-1   GStreamer plugin for PulseAudio
ii  libasound2-plugins           1.0.23-1+b1 ALSA library additional plugins
ii  pulseaudio-esound-compat     0.9.21-3+b1 PulseAudio ESD compatibility layer
ii  pulseaudio-module-x11        0.9.21-3+b1 X11 module for PulseAudio sound se

Versions of packages pulseaudio suggests:
ii  paman                        0.9.4-1     PulseAudio Manager
ii  paprefs                      0.9.9-2     PulseAudio Preferences
ii  pavucontrol                  0.9.9-1     PulseAudio Volume Control
ii  pavumeter                    0.9.3-1     PulseAudio Volume Meter
ii  pulseaudio-utils             0.9.21-3+b1 Command line tools for the PulseAu

-- no debconf information





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