Okay - I purged the ppa:xorg-edgers/radeon and ppa:xorg-edgers/drivers-only and reinstalled the standard drivers. I'm using now again Kernel 2.6.32-22-generic. Can't see any artifacts but the 3D acceleration doesn't seem to work. Find attached my logs.
** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/47898858/Xorg.0.log -- [R350] screen corruption on 9800SE https://bugs.launchpad.net/bugs/565883 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