Re: the nvidia/osmesa dilema

[John W. Eaton]

On 05/05/2016 06:16 PM, Daniel J Sebald wrote:

> For what it's worth, here's the result I get from that:
>
> sebald@ ~/octave/octave/octave $
> LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGL.so
> /usr/local/src/octave/octave/build1/run-octave --no-gui --silent
> > > graphics_toolkit ('qt')
> > > figure visible off
> 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

Sorry, I made a mistake here.  The correct thing is to preload the 
osmesa library.  I think that prevents the function from the nvidia 
libGL library from being used and avoids the crash, at least for me.

jwe