It seems to be a MESA problem: https://bugs.freedesktop.org/show_bug.cgi?id=6624
According to the bug report it should be fixed in the MESA CVS. -- libGL warning: 3D driver claims to not support visual 0x4b https://launchpad.net/bugs/58541 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs