[Pkg-alsa-devel] Bug#635042: lib32asound2-plugins: PulseAudio plugin causes sluttering sound

Maurizio Oliveri 6tsukiyami9 at gmail.com
Fri Jul 22 01:16:00 UTC 2011

Package: lib32asound2-plugins
Version: 1.0.23-2
Severity: important
Tags: upstream

I'm not sure if this problem exists in libasound2-plugins aswell, since it only
happened with a binary using lib32asound2-plugins.
This problem occours when PulseAudio is used with alsa-plugin, and causes the
audio to be nearly unuseable: the sound plays for roughly half a second, then
stops, then goes again, and the cpu usage goes up to about 80%. Also, in the
list of applications using pulseaudio in gnome-volume-control.pulse, you can
see the application causing the issue (always using alsa-plugin) flickering, as
if the sink was being repeatedly opened and then closed.

I've done some researches, and I've found out this bug used to happen in Ubuntu
aswell, and it has been fixed some time ago. Here's the bug track:

This bug has already been reported before (and received no responses at all):
but I guess it should apprear as related to lib32asound-plugins rather than to

I confirm that this bug still happens with the current alsa-base, lib32asound-
plugins, libasound-plugins and pulseaudio in sid; since the previews bug
reports contain a lot of informations about the issue, so I guess explaining it
more in detail would be kind of redundant...

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.39-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages lib32asound2-plugins depends on:
ii  ia32-libs                     20110609   ia32 shared libraries for use on a
ii  lib32asound2         shared library for ALSA applicatio
ii  libc6-i386                    2.13-10    Embedded GNU C Library: 32-bit sha

lib32asound2-plugins recommends no packages.

lib32asound2-plugins suggests no packages.

-- no debconf information

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