linux-kernel - Re: [BISECTED] [REGRESSION] "ACPI video: support _BQC/_BCL/_BCM methods that use index values" breaks ACPI video

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Date:	Fri, 17 Apr 2009 08:42:36 +0800
From:	yakui_zhao <yakui.zhao@...el.com>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [BISECTED] [REGRESSION] "ACPI video: support _BQC/_BCL/_BCM
	methods that use index values" breaks ACPI video

On Thu, 2009-04-16 at 19:37 +0800, Maxim Levitsky wrote:
> 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"
Will you please file a new bug at
http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
and attach the output of acpidump, dmidecode?

thanks.
> 
> 
> Best regards,
> 	Maxim Levitsky
> 

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