Found a bypass for the bug. Now an external monitor works! See attached xorg.conf and http://www.iki.fi/karvinen/acer_travelmate_3004wtmi_with_linux.html#external_monitor
It is still a bug though, an external monitor should work out of the box right after installation. -- External monitor does not work with Intel 915 https://launchpad.net/bugs/38729 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
