same issue here with thinkpad W500 it was working fine almost 45 days ago but not anymore with ubuntu although works with vista
in Xorg.0.log i noticed this "invalid output device for dac detection" attached part of the log when i start to mirror the screen. btw during the boot i see dual screen working on laptop and the external ThinkVision L220x but the moment login screen of ubuntu shows it disabled the external monitor although ubuntu's boot logo shows ** Attachment added: "Xorg.log" http://launchpadlibrarian.net/24325047/Xorg.log -- displayport monitors not detected in Intrepid https://bugs.launchpad.net/bugs/328484 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
