[ardour-users] subgraph starting at ardour timed out

[Ivan Z. Ganza]

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
> 
>  
>