I see this problem as well, but not 100% of the time. It seems that I can get usable 3D performance with KMS if I reboot with radeon.modeset=0, select "Normal" for Visual Effects, then reboot again with radeon.modeset=1. It's still not great compared to when KMS is disabled but much better than if I boot with KMS enabled then start compiz after logging in.
I have been able to use this workaround twice now after running in the slow desktop problem. -- [KMS][RV530] compiz very slow on AGP hardware https://bugs.launchpad.net/bugs/496653 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
