Hi what would you suggest then compiling a kernel with the options mentioned in the link you sent? or maybe switching to another distro? I dont have the standard kernel installed. Is it worth installing is it usable in terms of latency without xruns?
On Tue, 2008-05-13 at 11:51 +0200, atuc wrote: > hallo > > i also have problems with the rt kernel on hardy and my usb m-audio > fasttrack, the standard kernel works better for me. > > i found this: > > http://ubuntuforums.org/showthread.php?t=781104 > > alex > > > Hi everyone, > > I'm having lots of trouble running jack (from jackQtl) in ubuntu studio > > 8.04 . I am using a USB sound card : Alesis io2 and Jack Xruns like > > crazy on all settings! I get some error messages at start up : > > > > > > > > 11:01:39.739 Startup script terminated with exit status=256. > > > > 11:01:39.740 JACK is starting... > > > > 11:01:39.740 /usr/bin/jackd -R -P70 -dalsa -dhw:1 -r48000 -p128 -n3 -D > > -Chw:1 -i2 -o2 > > > > 11:01:39.744 JACK was started with PID=7429. > > > > jackd 0.109.2 > > > > 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 lock down memory for jackd (Cannot allocate memory) > > > > loading driver .. > > > > apparent rate = 48000 > > > > creating alsa driver ... hw:1|hw:1|128|3|48000|2|2|nomon|swmeter|-|32bit > > > > control device hw:1 > > > > configuring for 48000Hz, period = 128 frames (2.7 ms), buffer = 3 > > periods > > > > ALSA: final selected sample format for capture: 24bit little-endian > > > > ALSA: use 3 periods for capture > > > > ALSA: final selected sample format for playback: 24bit little-endian > > > > ALSA: use 3 periods for playback > > > > JACK: unable to mlock() port buffers: Cannot allocate memory > > > > JACK: unable to mlock() port buffers: Cannot allocate memory > > > > 11:01:41.796 Server configuration saved to "/home/rob/.jackdrc". > > > > 11:01:41.797 Statistics reset. > > > > 11:01:41.799 Client activated. > > > > 11:01:41.800 JACK connection change. > > > > 11:01:41.804 JACK connection graph change. > > > > cannot lock down memory for RT thread (Cannot allocate memory) > > > > 11:01:56.259 XRUN callback (1). > > > > > > > > Does anyone know why jack cannot allocate memory? Any suggestions? > > Thanks for your time! > > Robin > > > > > > -- Ubuntu-Studio-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
