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From: Hans de Goede <hdegoede@redhat.com>
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Date: Fri, 9 Jan 2015 15:28:29 +0100
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Subject: [PATCH] acpi-video: Add disable_native_backlight quirk for Samsung
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 730U3E/740U3E
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The Samsung 730U3E/740U3E has integrated ATI Radeon graphics, and backlight
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control does not work properly when using the native interfaces.
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BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1094948
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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 drivers/acpi/video.c | 10 +++++++++-
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 1 file changed, 9 insertions(+), 1 deletion(-)
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diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
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index 25863442b6ae..5c4e35bebd3b 100644
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--- a/drivers/acpi/video.c
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+++ b/drivers/acpi/video.c
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@@ -505,7 +505,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
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 		DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"),
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 		},
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 	},
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-
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+	{
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+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */
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+	 .callback = video_disable_native_backlight,
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+	 .ident = "SAMSUNG 730U3E/740U3E",
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+	 .matches = {
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+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
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+		DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"),
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+		},
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+	},
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 	{
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 	 .callback = video_disable_native_backlight,
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 	 .ident = "SAMSUNG 870Z5E/880Z5E/680Z5E",
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-- 
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2.1.0
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