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(parent: 4a703a8) | patch
ACPI video: work-around BIOS AML bug in _BQC
authorZhang Rui <rui.zhang@intel.com>
Mon, 31 Aug 2009 16:39:54 +0000 (12:39 -0400)
committerLen Brown <len.brown@intel.com>
Mon, 31 Aug 2009 16:39:54 +0000 (12:39 -0400)
commit90c53ca426cb93d15eefea79dcf6bd15ad3ffeb4
tree40ca4e3d2fd7a1b921abc9ced9af2fc78151a161tree | snapshot (tar.gz zip)
parent4a703a8fe562824f269943d995ddff35077253a9commit | diff
ACPI video: work-around BIOS AML bug in _BQC

_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>
drivers/acpi/video.c diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)