Bug#387171: [Pkg-alsa-devel] Bug#387171: libasound2: PCM output doesn't work anymore

Javier Kohen jkohen at users.sourceforge.net
Wed Sep 13 00:56:55 UTC 2006


El mar, 12-09-2006 a las 20:54 +0200, Elimar Riesebieter escribió:
> On Tue, 12 Sep 2006 the mental interface of
> Javier Kohen told:
> 
> > Package: libasound2
> > Version: 1.0.12-1
> > Severity: normal
> > 
> > I just upgraded all ALSA packages from version 1.0.11-7 and was
> > left out with no audio output in my system. Suddenly all software
> > started refusing to play audio. Wine says "ALSA lib
> > pcm_dmix.c:846:(snd_pcm_dmix_open) unable to create IPC shm
> > instance." Totem-xine and gstreamer's playbin don't say much, but
> > they don't work either.
> 
> 
> Could you please reinstall libasound2_1.0.12-1 and post the output
> of
> $ ls -al /usr/lib/libasound*

Of course:
$ ls -la /usr/lib/libasound.*
-rw-r--r-- 1 root root 1324764 2006-09-11 06:27 /usr/lib/libasound.a
-rw-r--r-- 1 root root     835 2006-09-11 06:26 /usr/lib/libasound.la
lrwxrwxrwx 1 root root      18 2006-09-12 21:50 /usr/lib/libasound.so ->
libasound.so.2.0.0
lrwxrwxrwx 1 root root      18 2006-09-12 21:50 /usr/lib/libasound.so.2
-> libasound.so.2.0.0
-rw-r--r-- 1 root root  781092 2006-09-11
06:27 /usr/lib/libasound.so.2.0.0

> Else start xmms or your favourite audioplayer from the commandline
> and monitor the output in $TERM while loading an audio-file. Post
> suspicious output.

I can answer both. In case my original message wasn't clear enough, I'll
just write the same again, but in more detail.

Gstreamer's playbin:
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
[Nothing happens after this. Normally it would print "New clock:
audioclock2" instead of the previous line.]

Totem-xine opens the file and then complains that it has no video, so it
can't play it (it's an MP3). No output is seen on the console.

Aplay is the most verbose, but it just confirms what wine already told
us before:
ALSA lib pcm_dmix.c:846:(snd_pcm_dmix_open) unable to create IPC shm
instance
aplay: main:550: audio open error: Invalid argument

Thanks,
-- 
Javier Kohen <jkohen at users.sourceforge.net>
ICQ: blashyrkh #2361802
Jabber: jkohen at jabber.org
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