This is a note to let you know that I've just added the patch titled
drm/i915: Ignore VBT backlight check on Macbook 2, 1
to the 3.17-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-ignore-vbt-backlight-check-on-macbook-2-1.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b2a9601c587dbc5536546aa54009d1130adedd72 Mon Sep 17 00:00:00 2001
From: jens stein <jens.s.stein@xxxxxxxxx>
Date: Tue, 28 Oct 2014 20:25:53 +0100
Subject: drm/i915: Ignore VBT backlight check on Macbook 2, 1
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From: jens stein <jens.s.stein@xxxxxxxxx>
commit b2a9601c587dbc5536546aa54009d1130adedd72 upstream.
commit c675949ec58ca50d5a3ae3c757892f1560f6e896
Author: Jani Nikula <jani.nikula@xxxxxxxxx>
Date: Wed Apr 9 11:31:37 2014 +0300
drm/i915: do not setup backlight if not available according to VBT
prevents backlight setup on Macbook 2,1. Apply quirk to ignore the VBT
check so backlight is set up properly.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81438
Signed-off-by: Jens Stein Jørgensen <jens.s.stein@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12507,6 +12507,9 @@ static struct intel_quirk intel_quirks[]
/* Acer C720 Chromebook (Core i3 4005U) */
{ 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
+ /* Apple Macbook 2,1 (Core 2 T7400) */
+ { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
+
/* Toshiba CB35 Chromebook (Celeron 2955U) */
{ 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
Patches currently in stable-queue which might be from jens.s.stein@xxxxxxxxx are
queue-3.17/drm-i915-ignore-vbt-backlight-check-on-macbook-2-1.patch
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