I would like to second this one. I have a MergedFB setup on my older Vaio laptop. After the update, I've reverted to clone mode. Attached are my xorg.conf and Xorg.0.log.
** Attachment added: "previously working xorg.conf file" http://librarian.launchpad.net/6580074/xorg.conf -- mergedfb doesn't work with xserver-xorg-core 2:1.2.0-3ubuntu1 (or newer) https://launchpad.net/bugs/88741 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs