[Bug 77297] [ILK/SNB/IVB/BYT/HSW/BDW bisected]CallTrace: WARNING: CPU: 0 PID: 1335 at drivers/gpu/drm/i915/intel_display.c:768 intel_wait_for_vblank+0x159/0x17c [i915]() while running kms_flip_absolute-wf_vblank

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77297

--- Comment #10 from Jesse Barnes <jbarnes at virtuousgeek.org> ---
The latest dmesg has a vblank timeout warning from dp_link_down.  But that
should only happen on IBX platforms, the wait is gone from all others.  Does
your tree have

commit 93c9c19b3d259a76fc2efa4b8f2478dc9f339bee
Author: Jesse Barnes <jbarnes at virtuousgeek.org>
Date:   Fri Apr 11 14:25:41 2014 -0700

    drm/i915: remove unexplained vblank wait in the DP off code

?

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