Tried to install ubuntu 12.10 on that machine but failed. The kernel in the installation iso is 3.5.0-17, there is no i915-hsw module.
So I tried to do a fresh installation of 12.04.2. The xorg stack is lts- quantal. Without 2:2.20.9-0ubuntu2.3~precise1 in precise-proposed, this issue can be reproduced. After installing this package, this issue is fixed. -- You received this bug notification because you are a member of Desktop Packages, 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 Status in HWE Next Project: In Progress Status in OEM Priority Project: Invalid Status in “xserver-xorg-video-intel” package in Ubuntu: Fix Released Status in “xserver-xorg-video-intel-lts-quantal” package in Ubuntu: Triaged Status in “xserver-xorg-video-intel-lts-raring” package in Ubuntu: Triaged Status in “xserver-xorg-video-intel” source package in Quantal: Fix Committed Status in “xserver-xorg-video-intel-lts-quantal” source package in Quantal: New Status in “xserver-xorg-video-intel” source package in Raring: Fix Released Status in “xserver-xorg-video-intel-lts-raring” source package in Raring: Fix Committed Bug description: [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] To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1202524/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
