System Preferences/Display/Options/ Disable brightness buttons-unchecked?

I know this button disables buttons on Apple displays.... not sure if it does it on kbs... but it would seem to make sense.
_________________________
http://davidbearphotography.com/

"If it turns out that President Barack Obama can make a deal with the most intransigent, hard-line, unreasonable, totalitarian mullahs in the world but not with Republicans? Maybe he’s not the problem."