ACPI video: work-around BIOS AML bug in _BQC

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_BQC on some laptops returns an uninitialized value when it's
invoked for the first time.

Set the laptop to the maximum backlight level in this case.
http://bugzilla.kernel.org/attachment.cgi?id=22675

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

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Zhang Rui 2009-08-31 12:39:54 -04:00 • committed by Len Brown

parent 4a703a8fe5

commit 90c53ca426

1 changed files with 14 additions and 4 deletions

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18

drivers/acpi/video.c

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