I have seen the same issue today on an ASUS A2D with a Radeon Mobility 9200.
Notice that removing the battery had the same effect (power cable was plugged, of course...) : kill X. Isn't the X server a little touchy about acpid events ? -- Xorg exits when it receives an ACPI button/lid event https://launchpad.net/bugs/61746 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
