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Subject: Re: regression 2.6.37 -> 2.6.38-rc1: after suspend backlight
 cannot be adjusted
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Norbert Preining <preining@logic.at>
Cc: linux-kernel@vger.kernel.org,
        ACPI Devel Mailing List <linux-acpi@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>
In-Reply-To: <20110121015529.GD9796@gamma.logic.tuwien.ac.at>
References: <20110121015529.GD9796@gamma.logic.tuwien.ac.at>
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Date: Fri, 21 Jan 2011 05:11:47 +0100
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Le vendredi 21 janvier 2011 à 10:55 +0900, Norbert Preining a écrit :
> Hi everyone,
> 
> (please Cc)
> 
> going to 2.6.38-rc1 I see the following regression: After reboot I
> can easily adjust the backlight with the keys on my keyboard, but 
> after a suspend-to-ram this does not work anymore.
> 
> This is a Sony laptop, and backlight is controlled by the video
> acpi driver AFAIR.
> 

Hi Norbert

Maybe this is the problem Linus had to bisect, you could try his patch :

http://marc.info/?l=linux-netdev&m=129556877919576&w=2

Thanks !