[LUNA] problems w/ CentOS 6.7 windowing

[Kenneth Xiques]

I have a recently upgraded machine running CentOS 6.7. It ran CentOS 5.8
for a few weeks uneventfully, & FC7-x86_64 (!!!!) for about 10 years before
that. I had to go to CentOS 6 to run some commercial software that only
supports RHEL6, not 5, which I found out the hard way :-/. Machine is an
Intel I7 CPU, NVidia gfx card, 24 GB RAM, 2 HDD's, 1 for system, other for
/home, where all data etc. resides. I have some inhouse code that ran OK
under FC7 & CentOS 5.8, but is croaking now w/ the following errors at the
CLI:


libGL error: unable to load driver: nouveau_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: nouveau
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line
Source
post3d             000000000052E0D1  Unknown               Unknown  Unknown
post3d             000000000052868E  Unknown               Unknown  Unknown
libXt.so.6         0000003566413BBF  Unknown               Unknown  Unknown
libGLw.so.1        00002AFBB053EE71  Unknown               Unknown  Unknown
libXt.so.6         0000003566429B5C  Unknown               Unknown  Unknown
libXt.so.6         0000003566429CC0  Unknown               Unknown  Unknown
libXt.so.6         0000003566429CC0  Unknown               Unknown  Unknown
libXt.so.6         0000003566429CC0  Unknown               Unknown  Unknown
libXt.so.6         0000003566429CC0  Unknown               Unknown  Unknown
libXt.so.6         0000003566429CC0  Unknown               Unknown  Unknown
libXt.so.6         0000003566429F80  Unknown               Unknown  Unknown
post3d             0000000000527940  Unknown               Unknown  Unknown
post3d             0000000000404D7C  Unknown               Unknown  Unknown
post3d             0000000000404BAC  Unknown               Unknown  Unknown
libc.so.6          000000355B81ED5D  Unknown               Unknown  Unknown
post3d             0000000000404AA9  Unknown               Unknown  Unknown

The program is an in-house CAD/grid-gen'n-pre-processor. using OpenGL
(obviously) & now croaking. It is invoked from the CLI, has been for 20-ish
years. Does this scream anything obvious ? If it's pilot error, do *NOT*
hesitate. TIA & have a good one.
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