[Octave-bug-tracker] [bug #44478] test __osmesa_print__.cc-tst crashes with Nvidia drivers

[John W. Eaton]

Follow-up Comment #80, bug #44478 (project octave):

I don't think this is about threads.  As far as I can tell, the problem is
that nvidia's OpenGL library doesn't play well with the OSMesa library.

Please try the attached very simple program.  No threads.  Just two calls to
GL functions after setting up an OSMesa context.

I compiled with


g++ osmesa-foo.cc -lGL -lOSMesa 


On a system with the Mesa OpenGL libraries, I see


GL_DEPTH_BITS: 16
GL_STENCIL_BITS: 0


as expected.

On the same system, after installing the nvidia OpenGL library (as a
dependency of the Debian nvidia-legacy-340xx-driver package) I see


GL_DEPTH_BITS: 0
GL_STENCIL_BITS: 4196832


Is there something wrong with the example program?


(file #37131)
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Additional Item Attachment:

File name: osmesa-foo.cc                  Size:0 KB


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