From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 28 Aug 2014 08:20:46 +0000 (+0200)
Subject: ACPI / video: Add a disable_native_backlight quirk
X-Git-Tag: fixes-v3.17-rc4~9^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f24079b021cd3147c8d24ba65833f7a0df7e80d;p=pandora-kernel.git

ACPI / video: Add a disable_native_backlight quirk

Some laptops have a working acpi_video backlight control, and using native
backlight on these causes a regression where backlight control does not work
when userspace is not handling brightness key events. Disable native_backlight
on these to fix this.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=81691
Reported-and-tested-by: Andre Müller <andre.muller@web.de>
Cc: 3.16+ <stable@vger.kernel.org> # 3.16+
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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