after some more modifications to the mathematica frontend startup script
a workaround emerged: comment out the block which runs the "gltest"
executable:
# Check for GL and GLU version
#GLTest="env LD_LIBRARY_PATH=${M_LIBRARY_PATH} SHLIB_PATH=${M_LIBRARY_PATH}
LIBPATH=${M_LIBRARY_PATH}
${TopDirectory}/SystemFiles/FrontEnd/Binaries/${SystemID}/gltest"
#GLTestResult=`${GLTest} 1 1 1 2 ${userDisplay} 2> /dev/null | grep
"GLTest_OK"`
#if [ -z "${GLTestResult}" ]; then
# mesa="-mesa"
#fi
it seems that this executable crashes the xserver upon exit, most
probably since the "fatal io error 11" leaves the gl subsystem in a
strange state. it is hilarious that the test program can wreck such a
havoc...
i have also run this gltest executable with the gdb in batch mode but,
except for the exit status, there is no other noise reported. so this is
still a libgl bug, where some malformed call leaves it in undefined
state.
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https://bugs.launchpad.net/bugs/1256561
Title:
starting mathematica 9 crashes xserver
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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1256561/+subscriptions
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