[Bug 75725] [HSW regression] Upgrading from kernel 3.13.x to 3.14.x causes FPS drops during video playback in XBMC

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75725

--- Comment #12 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
Created attachment 95234
  --> https://bugs.freedesktop.org/attachment.cgi?id=95234&action=edit
[PATCH] drm/i915: Add a workaround for HSW scanline counter weirdness

This patch should fix it for 3.14.

I also pushed this on top of the latest drm-intel-fixes tree to:
git://gitorious.org/vsyrjala/linux.git hsw_vblank

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