tree a23f3928c43077163e5fb52350e4f20e0eb1be56
parent 27acf5494c3bf51ec65fd1971992f7daa749b319
author Alex Hung <alex.hung@canonical.com> 1367828623 +0000
committer chrmhoffmann <chrmhoffmann@gmail.com> 1586074828 +0200

ACPI video: ignore BIOS initial backlight value for HP 1000

commit 4ef366c583d6180b1c951147869ee5a3038834f2 upstream.

On HP 1000 lapops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.

References:: https://bugs.launchpad.net/bugs/1167760
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>