Try to launch xvidtune from a shell prompt. Click on Left button a couple of time and then click on Test to show what happened. Repeat this procedure if needed and, when ready, click on Show button and exit xvidtune. Now your console reports a line with some numbers. Open /etc/init.d/xorg.conf (using root privileges) and write under section "Monitor" the word ModeLine followed by the line obtained from xvidtune. Save the file and restart X.org.
** Changed in: Ubuntu Sourcepackagename: None => xorg Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Unconfirmed => Needs Info -- Gnome desktop screen is offset to the right by 1/2 Icon https://launchpad.net/bugs/48289 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs