From b2a9601c587dbc5536546aa54009d1130adedd72 Mon Sep 17 00:00:00 2001 From: jens stein Date: Tue, 28 Oct 2014 20:25:53 +0100 Subject: [PATCH] drm/i915: Ignore VBT backlight check on Macbook 2, 1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit c675949ec58ca50d5a3ae3c757892f1560f6e896 Author: Jani Nikula 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 Cc: stable@vger.kernel.org (3.15+) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 07ff295..f0a1a56 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -12885,6 +12885,9 @@ 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 }, -- 2.7.4