linux-kernel - [PATCH 3.16 105/158] ACPI / video: Disable native

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Date:	Mon, 15 Sep 2014 12:25:44 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH 3.16 105/158] ACPI / video: Disable native_backlight on HP ENVY 15 Notebook PC

3.16-stable review patch.  If anyone has any objections, please let me know.

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

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

commit 84c34858a85ecf9dabd72847d860c7d3fb7536e7 upstream.

Link: https://bugs.freedesktop.org/show_bug.cgi?id=81515
Reported-and-tested-by: Hohahiu <rakothedin@...il.com>
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/acpi/video.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -675,6 +675,17 @@ static struct dmi_system_id video_dmi_ta
 		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T520"),
 		},
 	},
+
+	/* The native backlight controls do not work on some older machines */
+	{
+	 /* https://bugs.freedesktop.org/show_bug.cgi?id=81515 */
+	 .callback = video_disable_native_backlight,
+	 .ident = "HP ENVY 15 Notebook",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"),
+		},
+	},
 	{}
 };
 


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