Der Mickster wrote:
Hey,
Can't seem to start jackd in realtime as user on ubuntu studio. It
does start as root, but that's hardly a consolation (unless I run all
audio software as root, which would be kinda daft IMO)
@audio - rtprio 99
@audio - nice -10
@audio - memlock unlimited
have been added to /etc/security/limits.conf
Nevertheless, starting it as user just doesn't seem to work, and I
just can't figure out why. I've googled the issue, and everybody seems
to agree that modifying limits.conf in the above manner should solve
the problem - yet this is what I get:
mick@kaizoku:~$ jackd -R -P89 -dalsa -dhw:0 -r48000 -p256 -n3 -S &
[1] 3092
mick@kaizoku:~$ no message buffer overruns
jackd 0.116.1
Copyright 2001-2005 Paul Davis and others.
jackd 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 compiled with System V SHM support.
cannot use real-time scheduling (FIFO at priority 10) [for thread
-1217255744, from thread -1217255744] (1: Operation not permitted)
cannot create engine
Any ideas?
If you haven't already disabled PulseAudio do so at once. :) See this
article for the howto:
http://idyllictux.wordpress.com/2009/04/21/ubuntu-904-jaunty-keeping-the-be…
The method might also work for 9.10, but so far I haven't needed it. I'm
running a 2.6.31 non-rt kernel that's playing nicely with JACK, though I
haven't yet tested it with any stress. The installer automatically added
the 2.6.31-rt kernel to grub, I'll test it asap.
Sorry to blow my own horn here (again), but you might also look at this
article to see if it has any ideas for you:
http://www.linuxjournal.com/content/judgement-day-studio-dave-tests-ubuntu-…
Best,
dp