2-12 Operating Your ComputerUsing the Quick ButtonsLocated on top of the keyboard are four quick buttons:Button DescriptionP1 Toggles the “Blackout” mode on or off.In Blackout mode, the LCD backlight and LED indicators are turned off.To bring the computer out of Blackout mode, press P1 or the powerbutton.NOTE: “Blackout” is the default setting of the P1 button. You canre-define the button. (See “P1 Quick Button Definition Utility” inChapter 6 for information.)Toggles ECO power saving mode on or off when using battery power.In ECO mode, the system turns down the panel backlight and sacrificesprocessing speed to gain more battery life. The button lights green whilein ECO mode.NOTE: The button works only when using battery power.Toggles the sunlight-readable mode on or off.In sunlight-readable mode, the LCD brightness is increased to the highestlevel. The button lights green while in sunlight-readable mode.
