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Subject: [BISECTED] [REGRESSION] "ACPI video: support _BQC/_BCL/_BCM
 methods that use index values" breaks ACPI video
From: Maxim Levitsky <maximlevitsky@gmail.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: "Zhao, Yakui" <yakui.zhao@intel.com>
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Date: Thu, 16 Apr 2009 14:37:19 +0300
Message-Id: <1239881839.5981.4.camel@maxim-laptop>
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I finally bisected a acpi video regression on my aspire 5720G

Reverting commit 

"ACPI video: support _BQC/_BCL/_BCM methods that use index values"
commit 1a7c618a3f7bef1a20ae740df512eeba21397fa5.


Makes it work, otherwise /sys/class/backlight is empty, and I get error
messages when I press hardware keys to change brightness:

"ACPI: Failed to switch the brightness"


Best regards,
	Maxim Levitsky