ACPI: video: Add backlight=native DMI quirk for Lenovo Ideapad Z470

Browse source

[ Upstream commit 96b709be18 ]

The Lenovo Ideapad Z470 predates Windows 8, so it defaults to using
acpi_video for backlight control. But this is not functional on this
model.

Add a DMI quirk to use the native backlight interface which works.

Link: https://bugzilla.suse.com/show_bug.cgi?id=1208724
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Jiri Slaby (SUSE) 2023-04-18 08:42:00 +02:00 • committed by Greg Kroah-Hartman

parent 9f10b4eb1b

commit 4cb0612cf2

1 changed files with 9 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

drivers/acpi/video_detect.c

View file