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[Launchpad Bug Tracker <1353405@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:ubuntu/trusty-proposed/linux-keystone

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https://bugs.launchpad.net/bugs/1353405

Title:
  [i915_bdw] fix a warning message during resume from suspend

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  Fix Committed

Bug description:
  fix a warning message on resume:

  [   55.632355] WARNING: CPU: 3 PID: 4178 at drivers/gpu/drm/i915/intel_pm.c:5570 check_power_well_state+0x69/0x6f [i915]()
  [   55.632358] state mismatch for 'display' (always_on 0 hw state 0 use-count 2 disable_power_well 1

  upstream commit 76c4b250080fff6, only applicable to i915_bdw on
  trusty.

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