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Subject[PATCH 3.16.y-ckt 086/183] ACPI / video: Add disable_native_backlight quirk for Samsung 510R
Date
3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hans de Goede <hdegoede@redhat.com>

commit e77a16355a29230b99bafe55834a8252e55308ec upstream.

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.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1186097
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
drivers/acpi/video.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d4b6a214892b..0f9bf52792b5 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -712,6 +712,15 @@ 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",

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