[CentOS] screen brightness changes depending on which application is run

Tue Apr 10 01:09:30 UTC 2012
Jeff Cen <jeff_cen at yahoo.com>

Hi Nate,

Thank you for the reply.  My machine is a box sitting away from me and doesn't have a ambient light sensor.  

Can the problem be gnome or the LCD monitor related? 


 From: Nate Duehr <denverpilot at me.com>
To: CentOS mailing list <centos at centos.org> 
Sent: Monday, April 9, 2012 3:07 PM
Subject: Re: [CentOS] screen brightness changes depending on which application is run
On Apr 8, 2012, at 12:18 PM, Jeff Cen wrote:

> Hi,
> I found my LCD screen brightness increase when I use firefox and other white background editors and screen brightness decrease when I use dark background applications, such as terminals with black background .  The change in screen brightness depending on the applications has been annoying. 
> My centos version is ver 5.7 64 bit.  Has anyone seen a similar problem or have a solution for that?  Thanks in advance.
> Jeff


Does your machine have an ambient light sensor?  

Light from the monitor, reflecting off of you, will often trigger changes in the amount of light the ambient light sensor is seeing.

Happens most with large changes like switching from a bright white (browser) background to a dark one, just as you describe in your symptoms.

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