** Description changed: + [Impact] + system hang in a common use-case with external monitor + + [Test case] + hit the hotkey combo to switch modes and it'll hang + + [Regression potential] + slim, this has been upstream for some time now + + -- + On a lenovo notebook running precise with quantal LTS stack has this issue. When connecting through VGA port, laptop monitor and external monitor will enter extend mode. But after pressing FN+F3 to switching mode, both laptop monitor and external monitor will become black screen, and system is hang, you need to force to power off. When connecting external monitor through HDMI, everything is OK. CPU: Intel(R) Core(TM) i3-4000M CPU @ 2.40GHz GPU: Intel Corporation Haswell Integrated Graphics Controller [8086:0416]
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1202524 Title: [lts] Switch VGA mode will become black screen To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1202524/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
