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
