The problem is fixed for me with 2.6.31-2.15, X is fast as usual again. One can read in the changelog that radeon KMS was disabled in this version.
I wonder why this affected me anyway, I have a R600 series chip which is not supposed to get KMS just yet at all. The now committed KMS is only up to R500 as far as I know. -- 2.6.31 kernel breaks 3d for radeon x1600 https://bugs.launchpad.net/bugs/394263 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs