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From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 2 Jun 2014 17:41:10 +0200
Subject: [PATCH] acpi-video: Add use native backlight quirk for the ThinkPad
W530
Like all of the other *30 ThinkPad models, the W530 has a broken acpi-video
backlight control. Note in order for this to actually fix things on the
ThinkPad W530 the commit titled:
"nouveau: Don't check acpi_video_backlight_support() before registering backlight"
is also needed.
https://bugzilla.redhat.com/show_bug.cgi?id=1093171
Bugzilla: 1093171
Upstream-status: Queued for 3.16
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/acpi/video.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 5c8ce8c699fc..d8a6ecb0b2b2 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -469,6 +469,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
{
.callback = video_set_use_native_backlight,
+ .ident = "ThinkPad W530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W530"),
+ },
+ },
+ {
+ .callback = video_set_use_native_backlight,
.ident = "ThinkPad X230",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
--
1.9.3
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