[Bug 1202524] Re: [lts] Switch VGA mode will become black screen

[Chris Wilson]

** Summary changed:

- Switch VGA mode will become black screen
+ [lts] Switch VGA mode will become black screen

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Triaged => Fix Released

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Title:
  [lts] Switch VGA mode will become black screen

Status in HWE Next Project:
  New
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

Bug description:
  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]

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