Please use http://www16.plala.or.jp/mano-a-mano/i810switch.html for switching between main display and external monitor on this Acer machine.
Rejecting this since it is most probably a hardware issue. I had the same acer machine not so long ago. ** Changed in: linux-source-2.6.12 (Ubuntu) Status: Needs Info => Rejected -- Acer TravelMate stucks by typing Fn+F5 https://launchpad.net/bugs/38447 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs