<html> <head> <style> .hmmessage P { margin:0px; padding:0px } body.hmmessage { font-size: 10pt; font-family:Verdana } </style> </head> <body class='hmmessage'>   Was the linux kernel updated in the last update ?   Some bugs have been reported with regards to jackd and certain rt kernel versions:   This link may help you: http://www.linuxmusicians.com/viewtopic.php?f=27&t=795   Try also: http://www.linuxmusicians.com/viewtopic.php?f=27&t=781   and http://www.linuxmusicians.com/viewtopic.php?f=27&t=796   Hope it helps! Gerard. > Date: Tue, 30 Dec 2008 20:52:36 -0500 > From: phil@adjacentfilms.com > To: ubuntu-studio-users@lists.ubuntu.com > Subject: Jack RT stopped working after system update > > Hello, > > Yesterday I hooked up my Ubuntu Studio box to the internet again for > the first time in about a month and a half so I could get some files > and programs, and also to update the system. There were a lot of > updates, and the computer froze about 4/5 through installing the > files, so I forced a restart. > > Restarted. Opening Synaptic gave me a message telling me to run "dpkg > --configure -a". I did that and it seemed to finish installing the > programs as it would normally. > > Now when I try to start Jack with RT enabled, it fails. It works > without RT, and it worked before either way. I've messed around with > the settings, but so far to no avail. > > Here is the output of the Messages window: > > 20:18:47.587 Patchbay deactivated. > 20:18:47.680 Statistics reset. > 20:18:47.718 ALSA connection graph change. > 20:18:47.915 ALSA connection change. > 20:19:24.476 Startup script... > 20:19:24.479 artsshell -q terminate > 20:19:24.926 Startup script terminated with exit status=256. > 20:19:24.927 JACK is starting... > 20:19:24.928 /usr/bin/jackd -R -dfreebob -r44100 -p1024 -n3 -D > 20:19:24.943 JACK was started with PID=5732. > 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 use real-time scheduling (FIFO at priority 10) [for thread > -1210870096, from thread -1210870096] (1: Operation not permitted) > cannot create engine > 20:19:24.958 JACK was stopped successfully. > 20:19:24.959 Post-shutdown script... > 20:19:24.961 killall jackd > jackd: no process killed > 20:19:25.374 Post-shutdown script terminated with exit status=256. > 20:19:26.958 Could not connect to JACK server as client. - Overall > operation failed. - Unable to connect to server. Please check the > messages window for more info. > > > > > I am using a Pentium 4 machine with 512MB ram, 58GB on this partition. > I've got a FireWire card in a PCI slot to which a Presonus FireBox is > attached. This is the first time I've had problems with the audio. > > I'm using the RT kernel > I've got realtime checked in Jack settings, with 3 periods at 1024 > frames each. I've been using the freebob driver. > > All these settings are fine when realtime is not enabled. In a few > days I am going to need to record about 8 tracks simultaneously (2 > fireboxes), and I can't see that happening without realtime > scheduling. > > thanks, > Phil > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users <hr />¡Accede al correo desde el móvil! <a href='http://vivelive.com/encuesta/' target='_new'>¿Qué opinas? </a></body> </html>