Commit 6276e53f authored Nov 29, 2016 by Hans de Goede Committed by Rafael J. Wysocki Nov 29, 2016

ACPI / video: Add force_native quirk for HP Pavilion dv6

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.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1204476
Link: https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1416940


Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 350fa038

drivers/acpi/video_detect.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -305,6 +305,17 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
		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"),
		},
		},

		{ },
		};

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