The patch works for me (two/three days, xrandr never stopped working). Would be nice if somebody with commit access to upstream X could apply it. Or at least if Feisty had the patch applied if no upstream developer has the time to take a look at it in time.
The patch (for xorg-server-1.1.1/randr/randr.c) is here: https://bugs.freedesktop.org/attachment.cgi?id=8586 -- RandR stops working with MergedFB when the external display is disconnected https://launchpad.net/bugs/37444 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs