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#1 2015-02-28 02:03:37

costis
Member
Registered: 2014-10-02
Posts: 14

JACK2 error: DBus exception: org.jackaudio.Error.Generic:

I try to follow https://wiki.archlinux.org/index.php/JA … ection_Kit
to work with JACK2 D-Bus but I get:

$ jack_control start
--- start
DBus exception: org.jackaudio.Error.Generic: Failed to open server

I have consulted this thread without results.
When I open qjackctl and attempt to start the server I get:

01:56:11.937 Patchbay deactivated.
01:56:11.943 Statistics reset.
01:56:11.945 ALSA connection change.
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
01:56:11.954 ALSA connection graph change.
01:56:20.676 JACK is starting...
01:56:20.676 jackd -dalsa -dhw:0 -r48000 -p1024 -n2
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
01:56:20.680 Could not start JACK. Sorry.
01:56:22.012 JACK was stopped

Any ideas?

PS: There are no relevant messages in dmesg and my /etc/pulse/client.conf is:

$ cat /etc/pulse/client.conf    
# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.

## Configuration file for PulseAudio clients. See pulse-client.conf(5) for
## more information. Default values are commented out.  Use either ; or # for
## commenting.

; default-sink =
; default-source =
; default-server =
; default-dbus-server =

#; autospawn = yes
; autospawn = no 
; daemon-binary = /usr/bin/pulseaudio
; extra-arguments = --log-target=syslog

; cookie-file =

; enable-shm = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB

; auto-connect-localhost = no
; auto-connect-display = no

More info:

$ uname -vro
3.19.0-mainline-3.19-test-1 #1 SMP PREEMPT Wed Feb 11 13:27:53 WET 2015 GNU/Linux
$ kwin -v
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
Qt: 4.8.6
KDE Development Platform: 4.14.5
KWin: 4.11.16

Last edited by costis (2015-02-28 02:07:41)

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#2 2021-09-05 18:26:38

archlinuxforever
Member
Registered: 2015-06-18
Posts: 48

Re: JACK2 error: DBus exception: org.jackaudio.Error.Generic:

Is a bit old issue, but today I had the same issue.

My problem was that the line in the file start_jack.sh:

jack_control dps device hw:HD2

Is an example. The wiki says that you can see your sound card names with:

$ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfebf8000 irq 29
 1 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfe87c000 irq 17
$

So, I changed the line by:

jack_control dps device hw:Intel

and the issue was solved.

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#3 2021-09-05 18:42:14

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 14,058

Re: JACK2 error: DBus exception: org.jackaudio.Error.Generic:

Closing this 6 year old thread.

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