I am tryng to use the "qt" graphics toolkit on a machine that has mpi installed, and get the following error:
./run-octave --no-gui
GNU Octave, version 4.2.0
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octave:1> figure
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
octave-gui: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
panic: Aborted -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
Aborted (core dumped)