I have this issue as well, and I have tried different NvAGP settings. The system locks up with 100% CPU usage by Xorg, but I could still log into the box and pulled some information. I ran the nvidia-bug- report.sh file, and I've attached the information here. I'll also send onto Nvidia, but I wanted to provide it here as well
** Attachment added: "nvidia-bug-report.log" http://librarian.launchpad.net/7746752/nvidia-bug-report.log -- [nvidia-glx-new] NVidia driver freezes xorg https://bugs.launchpad.net/bugs/109453 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