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From d2200ccf6915d4b357efe1db07257189cad47b86 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Mon, 2 Jun 2014 17:41:10 +0200
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Subject: [PATCH] acpi-video: Add use native backlight quirk for the ThinkPad
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W530
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Like all of the other *30 ThinkPad models, the W530 has a broken acpi-video
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backlight control. Note in order for this to actually fix things on the
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ThinkPad W530 the commit titled:
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"nouveau: Don't check acpi_video_backlight_support() before registering backlight"
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is also needed.
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https://bugzilla.redhat.com/show_bug.cgi?id=1093171
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Bugzilla: 1093171
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Upstream-status: Queued for 3.16
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Cc: stable@vger.kernel.org
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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 | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
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index bef6c393e8a0..eb82264d9ef9 100644
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--- a/drivers/acpi/video.c
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+++ b/drivers/acpi/video.c
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@@ -463,6 +463,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
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},
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{
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.callback = video_set_use_native_backlight,
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+ .ident = "ThinkPad W530",
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+ .matches = {
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+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W530"),
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+ },
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+ },
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+ {
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+ .callback = video_set_use_native_backlight,
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.ident = "ThinkPad X230",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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--
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1.9.3
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