CentOS - Apr 2012 - screen brightness changes depending on which application is run

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

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
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.

Nate