Hi
Linux andy-desktop 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux
I am using Ubuntu 11.04 32Bit and I can't get Ardour to run, jackd seems to freeze, it was working on past releases but I have not managed to get it working with natty.
When I start ardour/jack jackd freezes in system monitor it states 'sys_rt_sigtimedwait' as the waiting channel. Note that this even happens with the Dummy driver!
This is the output from qjackctl:
Code:
p, li { white-space: pre-wrap; } 18:13:16.634 JACK is starting...
18:13:16.634 /usr/bin/jackd -r -dalsa -dhw:0 -r44100 -p1024 -n3
Cannot connect to server socket err = Connection refused
Cannot connect to server socket
jack server is not running or cannot be started
18:13:16.657 JACK was started with PID=9951.
no message buffer overruns
no message buffer overruns
jackdmp 1.9.7
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2010 Grame.
jackdmp 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 server starting in non-realtime mode
control device hw:0
control device hw:0
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|3|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
Using ALSA driver HDA-Intel running on card 0 - HDA NVidia at 0xcfff4000 irq 22
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 3 periods for playback
Jack then freezes here, once i kill the process jackd the text below appears.
Code:
18:13:31.309 Could not connect to JACK server as client. - Overall operation failed. - Server communication error. Please check the messages window for more info.
Cannot read socket fd = 28 err = Interrupted system call
Could not read result type = 22
Client name = qjackctl conflits with another running client
Cannot connect to the server
18:13:31.384 JACK was stopped successfully.
18:13:31.384 JACK has crashed.
Hope someone can help me out 
Thanks in advance.
Andy