keyboard backlighting of ASUS ROG


I’ve just installed openSuSE a few days ago. I now have got a dual boot windows 7 / OpenSuSE. My laptop go a backlighting keyboard, but when I boot on OpenSuSE, this backlighting doesn’t work.

Do you know how can I get my backlighting back please ?

My Laptop model is : Asus G53SX-SX116V

EDIT : I’m under the last stable version of OpenSuSE (12.01), with Gnome-Shell, on a 64bits computer.