[Bug 87286] [i915 intel_backlight] can't regulate brightness at GDM login prompt if HDMI monitor connected

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87286

--- Comment #6 from jre.winesim at gmail.com ---
Created attachment 110859
  --> https://bugs.freedesktop.org/attachment.cgi?id=110859&action=edit
Disable native backlight for SAMSUNG 900X3C/900X3D/900X3E/900X4C/900X4D

Based upon a patch by Aaron Lu
(https://bugzilla.kernel.org/show_bug.cgi?id=84561) for a similar issue.
Applies to git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git,
head at 9ea18f8cab5f1c36cdd0f09717e35ceb48c36a87, Linus Torvalds 2014-12-13
23:22:26

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