From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 21 Nov 2014 13:39:19 +0100
Subject: [PATCH] acpi-video: Add disable_native_backlight quirk for Dell XPS15
L521X
The L521X variant of the Dell XPS15 has integrated nvidia graphics, and
backlight control does not work properly when using the native interfaces.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1163574
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/acpi/video.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index a3d293806f96..e109b2cfb5b3 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -769,6 +769,16 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"),
},
},
+
+ {
+ /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */
+ .callback = video_disable_native_backlight,
+ .ident = "Dell XPS15 L521X",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"),
+ },
+ },
{}
};
--
2.1.0