I've seen the following problem for some time when wxpython is enabled:
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[xcb] Unknown sequence number while processing reply
[xcb] Most likely this is a multi-threaded client and XInitThreads has
not been called
[xcb] Aborting, sorry about that.
kicad: xcb_io.c:643: _XReply: Assertion
`!xcb_xlib_threads_sequence_lost' failed.
Aborted
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If I disable wxpython everything just works. I suspect it's a problem
with my configuration, since it's almost impossible to start pcbnew. Is
there anyone who has a suggestion where to look?