Try to disable DMA, HWCursor, ShadowFB (patch applied, external monitor disconnected):
Section "Device" Identifier "Configured Video Device" Option "EnableAGPDMA" "false" Option "NoAGPFor2D" Option "NoXVDMA" Option "SWCursor" "true" Option "ShadowFB" "false" EndSection Result: system freeze. ** Attachment added: "Xorg.0.log-patched-DMA_HWCursor_ShadowFB_disabled-external_monitor_disconnected" http://launchpadlibrarian.net/28454568/Xorg.0.log-patched-DMA_HWCursor_ShadowFB_disabled-external_monitor_disconnected -- [K8M800] mouse pointer corruptly displayed at the bottom of the X screen https://bugs.launchpad.net/bugs/386740 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs