#620313 libasound2-plugins: JACK plugin stopped working after jackd2 upgrade

Package:
libasound2-plugins
Source:
alsa-plugins
Description:
ALSA library additional plugins
Submitter:
Guido Loupias
Date:
2026-10-09 07:26:41 UTC
Severity:
normal
Tags:
#620313#5
Date:
2011-03-31 23:59:36 UTC
From:
To:
After upgrading jackd2 to 1.9.7~dfsg-1 the JACK plugin fails to play sound.
---- 1. JACK initialized via qjackctl:
01:44:34.869 JACK is starting...
01:44:34.870 /usr/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n2
Cannot connect to server socket err = Bestand of map bestaat niet
Cannot connect to server socket
jack server is not running or cannot be started
no message buffer overruns
01:44:34.884 JACK was started with PID=5952.
no message buffer overruns
jackdmp 1.9.7
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
control device hw:0
control device hw:0
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 2 periods for playback
01:44:36.963 JACK connection change.
01:44:36.964 Server configuration saved to "/home/guido/.jackdrc".
01:44:36.965 Statistics reset.
01:44:36.979 Client activated.
01:44:37.099 JACK connection graph change.
---- 2. Connections after init: read: system: capture_1 system: capture_2 write: system: playback_1 system: playback_2 system: playback_3 system: playback_4
---- 3. .asoundrc: ctl.!default { type hw card 0 } pcm.!default { type plug slave { pcm "jack" } } pcm.jack { type jack playback_ports { 0 alsa_pcm:playback_1 1 alsa_pcm:playback_2 } capture_ports { 0 alsa_pcm:capture_1 1 alsa_pcm:capture_2 } } aplay: pcm_write:1603: write error: Invoer-/uitvoerfout [1] guido@guido-laptop> Invoer-/uitvoerfout = I/O error ---- 5: output from JACK after aplay: Unknown destination port in attempted (dis)connection src_name [alsa-jack.jackP.6103.0:out_000] dst_name [alsa_pcm:playback_1]
#620313#8
Date:
2026-10-06 14:20:05 UTC
From:
To:
This is maybe because the package still has Build-Depends:
libjack-dev which results in it being linked to jack1 client library.

Please upgrade to libjack-jackd2-dev.

#620313#13
Date:
2026-10-09 07:21:27 UTC
From:
To:
Please find a patch attached.