If this is the same bug as https://bugs.freedesktop.org/show_bug.cgi?id=30029 it may be fixed upstream in kernel 2.6.36-rc5. This patch is also in kernel 2.6.35.5, which is schedule as a future Maverick update.
** Bug watch added: freedesktop.org Bugzilla #30029 http://bugs.freedesktop.org/show_bug.cgi?id=30029 -- Display Corruption Using KMS on Radeon HD 3400 https://bugs.launchpad.net/bugs/579671 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