Thanks for attaching enough information before anyone could ask for it :) It seems that the driver doesn't always get the DDC information from the monitor.
** Changed in: xorg (Ubuntu) Importance: Undecided => Medium Status: Unconfirmed => Confirmed -- X.org randomly picks 800x600 on a monitor capable of doing 1024x768 https://launchpad.net/bugs/95880 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs