This question has the same problem (but with different graphics card): https://answers.launchpad.net/ubuntu/+question/31200
-- MTRR is not properly setup on Intel Northbridge Chipset (P35) and Asus Motherboard with Memory Remapping Enabled https://bugs.launchpad.net/bugs/224404 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