I am affected by the same bug and followed this post to change the xorg.conf settings: http://ubuntuforums.org/showthread.php?t=1883119
So the text used is: SubSection "Display" Depth 24 Virtual 2304 2048 EndSubSection This did not help. Does xorg.conf not have any effect in 12.04? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/962018 Title: Dual Monitor (non-mirored) wont work since Update 9th March To manage notifications about this bug go to: https://bugs.launchpad.net/fglrx/+bug/962018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs