[ALSA - lib 0001184]: xmms/beep "couldn't open audio" on song change

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1184> 
======================================================================
Reported By:                Xero
Assigned To:                perex
======================================================================
Project:                    ALSA - lib
Issue ID:                   1184
Category:                   1_pcm_d - direct PCM plugins (dmix+)
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     feedback
======================================================================
Date Submitted:             06-11-2005 21:14 CEST
Last Modified:              12-30-2005 23:15 CET
======================================================================
Summary:                    xmms/beep "couldn't open audio" on song change
Description: 
When playing a song in beep sometimes it'll pop up a "couldn't open audio"
box as if the device is in use. This is using dmix, however, so that
seemed a bit weird. I normally have to close and reopen beep to resolve
this. I believe xmms does the same thing because I've read about people
having the exact same issue with xmms.

This starts showing up when I start pressing play again:

ALSA lib pcm_direct.c:196:(make_local_socket) connect failed:
/tmp/alsa-dmix-30443-1118514847-814284: Connection refused
ALSA lib pcm_dmix.c:834:(snd_pcm_dmix_open) unable to connect client
ALSA lib pcm_direct.c:196:(make_local_socket) connect failed:
/tmp/alsa-dmix-30443-1118514847-814284: No such file or directory
ALSA lib pcm_dmix.c:834:(snd_pcm_dmix_open) unable to connect client
ALSA lib pcm_direct.c:196:(make_local_socket) connect failed:
/tmp/alsa-dmix-30443-1118514847-814284: No such file or directory
ALSA lib pcm_dmix.c:834:(snd_pcm_dmix_open) unable to connect client
ALSA lib pcm_direct.c:196:(make_local_socket) connect failed:
/tmp/alsa-dmix-30443-1118514847-814284: No such file or directory
ALSA lib pcm_dmix.c:834:(snd_pcm_dmix_open) unable to connect client
ALSA lib pcm_direct.c:196:(make_local_socket) connect failed:
/tmp/alsa-dmix-30443-1118514847-814284: No such file or directory


However one thing which I've never seen mentioned in the previous reports,
is that when trying to use another app through dmix it doesn't work
either. Here's what mplayer says, when trying to play a video:

alsa-init: 1 soundcard found, using: default
ALSA lib pcm_direct.c:196:(make_local_socket) connect failed:
/tmp/alsa-dmix-30443-1118514847-814284: No such file or directory
ALSA lib pcm_dmix.c:834:(snd_pcm_dmix_open) unable to connect client
alsa-init: playback open error: No such file or directory
Could not open/initialize audio device -> no sound.
Audio: no sound

so apparently something went wrong with /tmp/alsa-dmix-*. As soon as I
closed beep, all other applications started working properly again, and
when I start it back up again, it works fine again too, until it does this
again. It seems to do it sporadically so it's somewhat hard to test for.

Attached is my asoundrc.
======================================================================

----------------------------------------------------------------------
 skandalfo - 09-15-05 21:02 
----------------------------------------------------------------------
I fear the fix present in alsa-lib-1.0.10_rc1 (I'm using the Gentoo ebuild)
doesn't fix the problem...

xine bombs out when switching 2.0 to 5.1 audio with somewhat like the
following:

...
audio discontinuity #21, type is 2, disc_off 25854
waiting for in_discontinuity update #21
video discontinuity #21, type is 2, disc_off 25854
ao_close
audio_out: no streams left, closing driver
audio_alsa_out: snd_pcm_open() of surround51 failed: Device or resource
busy
audio_alsa_out: >>> check if another program already uses PCM <<<
audio_out: open failed!
ao_flush (loop running: 1)
...

And then an error dialog pops up.

Removing the dmix thing from NFORCE.conf fixes it again... :(

----------------------------------------------------------------------
 rlrevell - 12-30-05 23:15 
----------------------------------------------------------------------
Any improvement in later releases?

Issue History
Date Modified  Username       Field                    Change              
======================================================================
06-11-05 21:14 Xero           New Issue                                    
06-11-05 21:14 Xero           File Added: asoundrc                         
06-11-05 21:14 Xero           Note Added: 0004994                          
06-15-05 15:03 tiwai          Note Added: 0005030                          
06-15-05 22:31 Xero           Note Added: 0005046                          
06-15-05 23:55 Xero           Note Added: 0005049                          
06-22-05 18:22 tiwai          Note Added: 0005142                          
06-22-05 19:01 Xero           Note Added: 0005144                          
06-23-05 02:47 Xero           Note Added: 0005162                          
06-26-05 22:08 Xero           Note Added: 0005267                          
06-27-05 16:22 tiwai          Note Added: 0005275                          
06-27-05 22:05 Xero           Note Added: 0005288                          
06-27-05 22:41 Xero           Note Added: 0005289                          
08-01-05 23:43 skandalfo      Note Added: 0005597                          
08-01-05 23:50 Xero           Note Added: 0005598                          
08-15-05 14:59 perex          Status                   new => assigned     
08-15-05 14:59 perex          Assigned To               => perex           
08-15-05 15:03 perex          Category                 0_general => 1_pcm_d -
direct PCM plugins (dmix+)
08-18-05 12:00 perex          Note Added: 0005842                          
08-18-05 13:06 perex          Note Added: 0005845                          
08-18-05 13:10 perex          Status                   assigned => feedback
08-18-05 18:31 Xero           Note Added: 0005850                          
09-15-05 21:02 skandalfo      Note Added: 0006222                          
09-15-05 21:07 skandalfo      File Added: xine-bugged-output.txt                
   
12-30-05 23:15 rlrevell       Note Added: 0007281                          
======================================================================




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