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[Timo Aaltonen <tjaalton@xxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1386620

Title:
  re-enable rotation for the intel driver in optimus mode

Status in HWE Next Project:
  Fix Released
Status in HWE Next trusty series:
  Fix Committed
Status in HWE Next utopic series:
  Fix Released
Status in HWE Next vivid series:
  Fix Released
Status in OEM Priority Project:
  New
Status in OEM Priority Project trusty series:
  New
Status in xorg-server package in Ubuntu:
  New
Status in xserver-xorg-video-intel package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-intel-lts-trusty package in Ubuntu:
  Invalid
Status in xorg-server source package in Trusty:
  Fix Committed
Status in xserver-xorg-video-intel source package in Trusty:
  Fix Released
Status in xserver-xorg-video-intel-lts-trusty source package in Trusty:
  Invalid
Status in xorg-server source package in Utopic:
  New
Status in xserver-xorg-video-intel source package in Utopic:
  Fix Released
Status in xserver-xorg-video-intel-lts-trusty source package in Utopic:
  Invalid
Status in xorg-server source package in Vivid:
  New
Status in xserver-xorg-video-intel source package in Vivid:
  Fix Released
Status in xserver-xorg-video-intel-lts-trusty source package in Vivid:
  Invalid

Bug description:
  [Impact] 
   * The fix for bug #1308515 prevents rotation from being used.
   * Rotation support should be added to the intel driver to maintain feature parity when optimus is used vs when not in use.

  [Test Case]
   * Run xrandr --output SOMEOUTPUT --rotation left
      - Expected: Screen should rotate.
      - Bad behavior: Succeeds, but causes a black screen. OR the call fails, and screen is not rotated.

  [Regression Potential] 
   * Will probably regress when modesetting is used, a separate patch might be needed to disable transforms on modesetting. Will have to be tested.

  [Other Info]
   n/a

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