alami@alami:~$ matlab -debug
Warning: Cannot convert string "-*-helvetica-medium-r-normal--12-*-*-*-*-*-*-*" to type FontStruct
libGL error: failed to load driver: r600
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
libGL error: failed to load driver: swrast
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
Killed
alami@alami:~$