Re: [Intel-gfx] [PATCH v3] drm/i915: fix backlight after resume on 855gm

2015-06-29 Thread Jani Nikula
On Fri, 26 Jun 2015, Jani Nikula wrote: > Some 855gm models (at least ThinkPad X40) regressed because of > > commit b0cd324faed23d10d66ba6ade66579c681feef6f > Author: Jani Nikula > Date: Wed Nov 12 16:25:43 2014 +0200 > > drm/i915: don't save/restore backlight hist ctl registers > > which t

Re: [Intel-gfx] [PATCH v3] drm/i915: fix backlight after resume on 855gm

2015-06-28 Thread shuang . he
Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang...@intel.com) Task id: 6566 -Summary- Platform Delta drm-intel-nightly Series Applied ILK

[Intel-gfx] [PATCH v3] drm/i915: fix backlight after resume on 855gm

2015-06-26 Thread Jani Nikula
Some 855gm models (at least ThinkPad X40) regressed because of commit b0cd324faed23d10d66ba6ade66579c681feef6f Author: Jani Nikula Date: Wed Nov 12 16:25:43 2014 +0200 drm/i915: don't save/restore backlight hist ctl registers which tried to make our driver more robust by not blindly savin