Is this exact lockup problem only on Ubuntu? I've been searching the web haven't seen it elsewhere.....
I'm joining the xorg mailing list and I will ask them. David -- Lockup problems with both the free xorg ATI driver and the proprietary fglrx driver, using various ATI cards https://launchpad.net/bugs/30447 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs