Patch "ACPI / video: Add force_native quirk for HP Pavilion dv6" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

ACPI / video: Add force_native quirk for HP Pavilion dv6

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
acpi-video-add-force_native-quirk-for-hp-pavilion-dv6.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Hans de Goede <[email protected]>
Date: Tue, 29 Nov 2016 15:32:16 +0100
Subject: ACPI / video: Add force_native quirk for HP Pavilion dv6

From: Hans de Goede <[email protected]>

commit 6276e53fa8c06a3a5cf7b95b77b079966de9ad66 upstream.

The HP Pavilion dv6 has a non-working acpi_video0 backlight interface and an intel_backlight interface which works fine. Add a force_native quirk for it so that the non-working acpi_video0 interface does not get registered.

Note that there are quite a few HP Pavilion dv6 variants, some woth ATI and some with NVIDIA hybrid gfx, both seem to need this quirk to have working backlight control. There are also some versions with only Intel integrated gfx, these may not need this quirk, but it should not hurt there.

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

@@ -280,6 +280,17 @@ static const struct dmi_system_id video_
 		DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"),
 		},
 	},
+	{
+	/* https://bugzilla.redhat.com/show_bug.cgi?id=1204476 */
+	/* https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1416940 */
+	.callback = video_detect_force_native,
+	.ident = "HP Pavilion dv6",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6 Notebook PC"),
+		},
+	},
+
 	{ },
 };
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/acpi-video-add-force_native-quirk-for-hp-pavilion-dv6.patch queue-4.4/acpi-video-add-force_native-quirk-for-dell-xps-17-l702x.patch