Confirmed with Xubuntu on a IBM Thinkpad T21. Adding Option "ShadowStatus"
to Xorg.conf Device Section did not solve it, but Option "BusType" "PCI" Option "DmaMode" "None". -- X freeze the computer (Dapper - glcore) https://launchpad.net/bugs/33368 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs