I get this problem with an onboard Intel graphics card, on my 64-bit box. Pentium 4/Pentium D, Socket 775, Intel 945G, mATX, 1066MHz FSB - SKU: P5LD2VM
in xorg.conf, my driver is : Identifier "Intel Corportation 945G Integrated Graphics Controller" Driver "i810" I am running gnome, and the fix mentioned here about changing the option in /etc/gdm/gdm.conf to AlwaysRestartServer=true did not help. -- 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