jack hangs when exiting apps

bart deruyter bart.deruyter at gmail.com
Sat May 7 06:27:40 UTC 2011

Hi all,

Running Natty now, skipped a version, so previously using 10.04 but having
the same issues as before.

Let me describe, it is weird, but it is very annoying:

System :  UbuntuStudio 11.04, 4 GB ram, intel 6700 @ 2.66GHz, drive space
enough, nvidia graphics GeForce 7600 GS, external firewire audio card Echo
Audiofire 12, usb2midi 2x2 .

Problem : exiting some audio apps causes jack to hang.

Really weird, no xrun problem, no startup problem, but exit problem. I have
to logout, login again, and then I can start jack properly again.

Apps involved : Rosegarden, Qsampler, PD (perhaps more, but I haven't time
to try them all.

Apps that don't cause the problem : Ardour, Rakarrack, Audio plugins in

The message says something about not being able to stop jackdbus...

Anyone else with this problem, or maybe with a fix?


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