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From b29c0d36da67a64f5de1fe167c0b807815aa1da4 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 4 Feb 2015 14:44:51 +0100
Subject: [PATCH 2/2] acpi-video: Add disable_native_backlight quirk for
 Samsung 510R

Backlight control through the native intel interface does not work properly
on the Samsung 510R, where as using the acpi_video interface does work, add
a quirk for this.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1186097
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/acpi/video.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 497d986..88a4f99 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -523,6 +523,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		},
 	},
 	{
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1186097 */
+	 .callback = video_disable_native_backlight,
+	 .ident = "SAMSUNG 3570R/370R/470R/450R/510R/4450RV",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "3570R/370R/470R/450R/510R/4450RV"),
+		},
+	},
+	{
 	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */
 	 .callback = video_disable_native_backlight,
 	 .ident = "SAMSUNG 730U3E/740U3E",
-- 
2.1.0