Owner's Manual

Operating Your Computer 2-17
Button Description
P3 Toggles the light sensor on or off. An OSD (On Screen Display)
pops up on the screen indicating the current status (AUTO for on
and MANUAL for off).
When set to AUTO, the brightness will be automatically adjusted
according to the current ambient light.
The backlight will return to the default MANUAL setting
whenever the computer resumes from Sleep/Hibernation mode
or the computer is restarted.
You can re-define the function of the button. (See “Using
Button Manager” in Chapter 6 for information.)