how can i config the brightness of the screen (time before i login)?
i use gnome-power-manger to manger the screen brightness,it works great.
but i found a problem,every time the laptop start up,the screen is 100% brightness before i login .the setting of screen brightness take effect only after i login the system,it dose works before i login the system !
how can i make the setting take effect even i not login the system ?