Since you had to add MonitorLayout option, I think this bug is duplicate of bug 22985. Recent ati driver update helps in detecting monitor layout and it works on some systems that did not work before. Can you re-test this with Edgy Release Candidate?
** Changed in: xorg (Ubuntu) Status: Unconfirmed => Needs Info ** Changed in: xorg (Ubuntu) Sourcepackagename: xorg => xserver-xorg-video-ati -- desktop-cd ubuntu 6.10 beta boots but 'blank screen' only https://launchpad.net/bugs/64502 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs