[PlanetCCRMA] Jack, Jackd and realtime problem

[Shayne O'Connor]

Ben Cohen wrote:

>Hello all,
>
>I think I'm having a problem with Jack. I use the
>jackd server but when I have the realtime box checked
>in qjackctl amsynth doesn't start.
>
>Here's the jack message:
>12:19:41.406 MIDI connection graph change.
>subgraph starting at qjackctl-4757 timed out
>(subgraph_wait_fd=17, status = 0, state = Finished)
>12:19:41.445 Audio connection graph change.
>12:19:41.446 XRUN callback (5).
>**** alsa_pcm: xrun of at least 8.616 msecs
>
>>From what I can gather realtime priority is a must for
>good audio performance so I any help on solving this
>would be great.
>
>I'm using kernel 2.6.10-2.1.ll.rhfc3.ccrma.
>
>This is the second time I've had problems with amsynth
>- it always amazes me how an inanimate object can get
>someone (i.e. me) so frustated!
>
>Cheers
>Benedict
>
>  
>

i'm getting a similar problem - i can run amSynth with alsa as output,
but using jack produces this:

[mrmachine@localhost mrmachine]$ amSynth
amSynth 1.0.0
Copyright 2001-2004 Nick Dowell and others.
amSynth 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
reading map file
        unlocking /usr/lib/libgtk-1.2.so.0.9.1
        unlocking /usr/lib/libgtk-1.2.so.0.9.1
        unlocking /usr/lib/libgtkmm-1.2.so.0.3.4
        unlocking /usr/lib/libgtkmm-1.2.so.0.3.4
 
GLib-WARNING **: getpwuid_r(): failed due to: No such user 500.
 
Gtk-WARNING **: /usr/lib/gtk/themes/engines/libbluecurve.so: failed to
map segment from shared object: Resource temporarily unavailable
/usr/bin/amSynth: line 75:  7830 Aborted                
$BINDIR/amSynth.bin $*
 
********** there was an error! **********
 
please check your config in ~/.amSynthrc
 



I'm not sure where this supposed "user 500" is set?

shayne