there is now a workaround in this commit: http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/natty/nux/natty/revision/26
// jaytaoko: This is a hack for what looks like a bug (#726033) in the radeon opensource driver // on R300/400/500. Rather than passing a null region to glScissor, we give the clip area a 1 pixel width.
there is now a workaround in this commit: bazaar. launchpad. net/~ubuntu- branches/ ubuntu/ natty/nux/ natty/revision/ 26
http://
// jaytaoko: This is a hack for what looks like a bug (#726033) in the radeon opensource driver
// on R300/400/500. Rather than passing a null region to glScissor, we give the clip area a 1 pixel width.