Stepan Bujnak a11d342fb8 ACPI / video: force vendor backlight on Lenovo Ideapad Z570 ...

Lenovo Ideapad 570 is a pre-win8 laptop where not using vendor
backlight causes the backlight controls not to work.

Signed-off-by: Stepan Bujnak <stepanbujnak@fastmail.fm>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2014-09-24 23:09:41 +02:00

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