zoo@aspire-3610:~$ glxinfo | grep -i direct libGL warning: 3D driver claims to not support visual 0x66 do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly. Try running with LIBGL_THROTTLE_REFRESH and LIBL_SYNC_REFRESH unset. direct rendering: Yes zoo@aspire-3610:~$