I also have this problem, also on a Gateway LT3119u (aka Acer ZA8) laptop running 10.10 with that RS690 chipset. I followed John Gorkos's suggestion but it didn't solve it.
-- [rs690m] Graphics corruption with ati x1200 https://bugs.launchpad.net/bugs/556782 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
