Andrew Sackville-West wrote:
Well, I guess that means you really are experiencing a hard lock. Yes, you could run several sessions on your remote machine (or even the local, if the screen remains intact) with various 'tail -f <logfile>` instances running and straces redirected, maybe a top too all in the hope of seeing something before it borks.
I've reproduced the problem outside of KDE and outside of denemo, using: aplaymidi -p17:0 playmidi -a kmid (only run under KDE) given sufficient disk activity during MIDI file playback. So the problem might lie with ALSA.