I experience a similar problem on my i5-2410M. I currently have a 64-bit Oneiric installation, however the bug was also present in Natty.
I have tried the latest xorg-edgers (in Natty) and latest Oibaf drivers (in Oneiric), without any luck. It seems to be an Ubuntu specific problem since trying the latest stable OpenSUSE and Mageia live cds do not reproduce the bug. ** Attachment added: "Screenshot3.png" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/829086/+attachment/2585207/+files/Screenshot3.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/829086 Title: Artifacts in 3D with Sandy Bridge To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/829086/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs