Can you try test kernel from bug 314928 - it has helped with tearing during flash playback for my 4500MHD laptop.
-- [GM45] Video playback suffers from tearing on GMA 4500MHD https://bugs.launchpad.net/bugs/339233 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
