View Full Version : [ubuntu] JACK fail ( could not connect to jack server ). EG. Rosegarden

May 23rd, 2011, 07:43 PM
Hi, I love Ubuntu- its all good. But the sound is not working with audio apps like: rosegarden, muse score, etc, only one its AOK for is Audacity. (?)
EVERY audio editor, every notation program, anything to do with music creation software comes up with this error "Could not connect to JACK server as client"
I tried using Qsynth instead, & tried installing the JACK control panel etc, no dice, every time- JACK fails. Ive tried workarounds to NOT use this damn JACK thing, but nothing works so far.
Music works, video works, in movies etc. Not a 'sound' problem- Qsynth functions for some things but isnt what the applications demand.
Here's the output from JACK- the 'obvious' errors in bold.
This has been a big frustration- and help is greatly appreciated!!!!!!


11:06:02.333 Patchbay activated.
11:06:02.487 Statistics reset.
11:06:02.608 Startup script...
11:06:02.609 artsshell -q terminate
11:06:02.743 ALSA connection graph change.
sh: artsshell: not found
11:06:05.905 Startup script terminated with exit status=32512.
11:06:05.906 JACK is starting...
11:06:05.907 /usr/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n15 -s -S -Xraw -H
no message buffer overruns
jackd 0.116.1
Copyright 2001-2005 Paul Davis and others.
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw:0|hw:0|1024|15|44100|0|0|hwmon|swmeter|soft-mode|16bit
control device hw:0
the playback device "hw:0" is already in use. Please stop the application using it and run JACK again
cannot load driver module alsa
11:06:06.144 JACK was started with PID=4627.
11:06:06.144 ALSA active patchbay scan...
11:06:06.147 ALSA connection change.
11:06:06.321 JACK was stopped successfully.
11:06:06.322 Post-shutdown script...
11:06:06.322 killall jackd
11:06:06.363 ALSA active patchbay scan...
jackd: no process found
11:06:06.761 Post-shutdown script terminated with exit status=256.
11:06:08.254 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.