[Bug 76276] Backlight control broken on Dell XPS13 w/ kernel 3.14-rc7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76276

--- Comment #22 from Kamal Mostafa <kamal at canonical.com> ---
(In reply to comment #20)
> Created attachment 97120 [details] [review]
> 2/2 drm/i915: do not setup backlight if not available according to VBT
> 
> Please test with these two patches applied.

Works great!  These patches do indeed re-fix backlight control in v3.14, on
both the two XPS13 models that had needed the NO_PCH_PWM_ENABLE quirk.

Tested-by: Kamal Mostafa <kamal at canonical.com>

Thanks Jani!

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