J M Needham wrote:
Just downloaded some updates in Suse 10.1 and now Jack won't start with the output message 10:15:09.194 Startup script... 10:15:09.197 artsshell -q terminate unix_connect: can't connect to server (unix:/tmp/ksocket-jonty/Hardcore101.site-3927-45230e26) 10:15:09.697 Startup script terminated with exit status=256. 10:15:09.700 JACK is starting... 10:15:09.701 jackd -R -p128 -dalsa -dhw:0 -r44100 -p512 -n2 10:15:09.734 JACK was started with PID=5500 (0x157c). jackd 0.102.20 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 POSIX SHM support. cannot use real-time scheduling (FIFO at priority 10) [for thread -1210202448, from thread -1210202448] (1: Operation not permitted) cannot create engine 10:15:09.742 JACK was stopped successfully. 10:15:11.828 Could not connect to JACK server as client. Please check the messages window for more info. I don't understand this. The only thing I think it could be is "cannot use real-time scheduling (FIFO at priority 10) [for thread -1210202448, from thread -1210202448] (1: Operation not permitted)" but I have no idea how to do it. Having googled the best I found was to reboot. I checked if it ran as root, which it did. Which device do I have to change persmissions of to get ti to run as user again, and why on earth would an update change who is allowed to start it? It's worked as user up until now!
Maybe you upgraded some key packages like pam? You have 2 solutions to access RT priv with linux 2.6 : first one is the realtime module but there is no reason it stopped to work if you didn't recompile/upgrade your kernel. Second one is RLIMIT, open your /etc/security/limits.conf file and check if you have lines like this : @audio - rtprio 80 @audio - memlock 500000 (you need logout/login if you make changes to this file) And be careful on my system the syntax of rtprio has recently changed from "rt_priority" to "rtprio". It still not trivial today with linux to have realtime priv for normal user :( Good luck. David.
