[ardour-users] subgraph starting at ardour timed out

[Jesse Chappell]

Oops, must have missed that in the first message.  OK, try
running *without* the realtime flag and see what happens.

jlc

Ivan Z. Ganza wrote on Tue, 02-Mar-2004:

 > Thank you,
 > 
 > hrmm, however, I am running jack as root with realtime flag.  I'm 
 > starting it from qjackctl
 > 
 > 10:31:33.043 JACK is starting...
 > 10:31:33.044 [/usr/bin/jackd -R -t999999999 -dalsa -dhw:0 -r48000 -p512 
 > -n2 -s -zs]
 > 10:31:33.057 JACK was started with PID=9516 (0x252c).
 > jackd 0.94.0
 > 
 > I'm also starting ardour as root.  Most odd...
 > 
 > -Ivan/
 > 
 > Jesse Chappell wrote:
 > 
 > >Ivan Z. Ganza wrote on Tue, 02-Mar-2004:
 > >
 > > > Start jack, start ardour.  Open up previous session, hit play.  Sound 
 > > > plays, sounds great!  As soon as I stop this soon afterward I get the 
 > > > subgraph error.  It seems to only happen soon after I STOP interacting 
 > > > with ardour though.  I'm forced to restart ardour after this error.
 > > > 
 > > > any suggestions?  There is more then enough CPU power on this box.  This 
 > > > CPU is HT and I'm running under an SMP aware kernel, is this bad?
 > >
 > >Hard to say why you get the subgraph error.  However, you really
 > >should be running JACK with the realtime flag (-R), since you
 > >use 2.6, Jack O'Quin's realtime security module will allow you
 > >to use the realtime flag as a normal user.   http://www.joq.us/
 > >Otherwise, to get realtime privileges you would need to run JACK
 > >and all jack apps as root.  
 > >
 > >I recommend trying out realtime, to see if these problems recur.
 > >
 > >jlc
 > >
 > >
 > > > Ardour built last night:
 > > >     http://ardour.org/releases/ardour-0.9beta11.2.tar.bz2
 > > > 
 > > > Output from Jack:
 > > > 
 > > > jackd 0.94.0
 > > > Copyright 2001-2003 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
 > > > loading driver ..
 > > > apparent rate = 48000
 > > > creating alsa driver ... 
 > > > hw:0|hw:0|512|2|48000|0|0|nomon|swmeter|soft-mode|32bit
 > > > control device hw:0
 > > > configuring for 48000Hz, period = 512 frames, buffer = 2 periods
 > > > Couldn't open hw:0 for 32bit samples trying 24bit instead
 > > > Couldn't open hw:0 for 24bit samples trying 16bit instead
 > > > Couldn't open hw:0 for 32bit samples trying 24bit instead
 > > > Couldn't open hw:0 for 24bit samples trying 16bit instead
 > > > Noise-shaped dithering at 16 bits
 > > 
 > >  
 > >
 > 
 >