I experienced the same problem (with GeForce 4 Ti4200) when upgrading from feisty to gutsy. Removing xserver-xgl also did the work
-- [Gutsy] XGL halves nvidia driver 100.14.11 performance https://bugs.launchpad.net/bugs/136650 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
