I've found a couple of ways to get nova to crash when using jack output.
Method 1:
1) start jack.
2) start nova gui.
3) select portaudio for audio device in the properties dialog.
4) select "alsa_pcm" as input and ouput device.
5) select sample rate to match jackd (96000 in my case)
6) click apply.
7) click apply again..
$ python nova_gui.py --debug
/home/indigo/dev/nova/pretty-gui-connections
memory locking enabled.
raising thread priority of 1082132800 to -5
initialized nova 0.1
copyright (c) 2005-2007 tim blechmann
compiled: Sep 29 2007 18:15:34
debug build
raising thread priority of 1098918208 to 5
python: source/kernel/audio_backend/portaudio.cpp:92: virtual void
nova::PortAudioBackend::OpenAudioStream(const nova::Device&, uint, const
nova::Device&, uint, uint): Assertion `stream == 0' failed.
Aborted (core dumped)
Method 2:
1) follow steps 1-7 of method 1.
2) click "close" on properties dialog.
3) connect the jack ports of nova to the audio device (alsa_pcm) using
qjackctl or similar
4) check the "compute audio" checkbox on the main window..
$ python nova_gui.py --debug
/home/indigo/dev/nova/pretty-gui-connections
memory locking enabled.
raising thread priority of 1082132800 to -5
initialized nova 0.1
copyright (c) 2005-2007 tim blechmann
compiled: Sep 29 2007 18:15:34
debug build
raising thread priority of 1098918208 to 5
enabling external scheduler
python: src/hostapi/jack/pa_jack.c:1591: StartStream: Assertion `jackErr_'
failed.
Aborted (core dumped)
I can provide core dumps through a private channel if these problems can
not be reproduced.
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