I needed to add the "nomodeset=1" option to the kernel. Did you solve the problem?
** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1372867 Title: Graphics problems on Dell Precision M4800 install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1372867/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs