Note: this upstream patch looks interesting:
commit 90c53ca426cb93d15eefea79dcf6bd15ad3ffeb4 Author: Zhang Rui <email address hidden> Date: Mon Aug 31 12:39:54 2009 -0400
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
Note: this upstream patch looks interesting:
commit 90c53ca426cb93d 15eefea79dcf6bd 15ad3ffeb4
Author: Zhang Rui <email address hidden>
Date: Mon Aug 31 12:39:54 2009 -0400
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. bugzilla. kernel. org/attachment. cgi?id= 22675
http://