linux-kernel - Re: [PATCH] Added backlight driver for Acer Aspire 4736

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Message-ID: <1332156793.2964.3.camel@debian.Gayathri>
Date:	Mon, 19 Mar 2012 17:03:13 +0530
From:	Pradeep Subrahmanion <subrahmanion.pradeep@...il.com>
To:	joeyli <jlee@...e.com>
Cc:	Matthew Garrett <mjg@...hat.com>, rpurdie@...ys.net,
	FlorianSchandinat@....de, akpm@...ux-foundation.org,
	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Added backlight driver for Acer Aspire 4736


> For the maximum level causes blank screen...
> 
> Please kindly help to identify which driver handle the brightness
> change, run the following 2 commands:
> 
> # echo 5 > /sys/class/backlight/acer-wmi/brightness 
> # echo 5 > /sys/class/backlight/intel_backlight/brightness 
> 
> Which one works to change brightness on your machine?

	Both  of them do not work for me.Only hot keys are working. 

Writing to /sys/class/backlight/acer-wmi/brightness 

and /sys/class/backlight/intel_backlight/brightness do not cause any 

change in brightness.


Regards , 

Pradeep Subrahmanion

> 
> 
> Thanks a lot!
> Joey Lee




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