I can report I've been seeing this problem also with the radeon driver. Direct rendering still seems functional though.
I went ahead and added the freedesktop.org upstream bug to this tracker. Based on the posts on that report, it seems like it is only a cosmetic issue and does not inhibit aiglx or direct rendering in any way. -- 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
