Hot key combination Description
fn+f4 Switches the screen image among display devices connected to the system. For example, if a
monitor is connected to the computer, fn+f4 alternates the screen image from computer
display to monitor display to simultaneous display on both the computer and the monitor.
Most external monitors receive video information from the computer using the external VGA
video standard. The fn+f4 hot key can also alternate images among other devices that are
receiving video information from the computer.
fn+f6 Decreases speaker volume.
fn+f7 Increases speaker volume.
fn+f8 Displays charging level
fn+f9 Decreases the screen brightness level.
fn+f10 Increases the screen brightness level.
fn+f12 Turns the keyboard backlight on and off (select models only).
NOTE: The keyboard backlight is turned on at the factory. To extend battery life, turn off the
keyboard backlight.
Using keypads
The computer includes an integrated numeric keypad. The computer also supports an optional
external numeric keypad, or an optional external keyboard that includes a numeric keypad.
Using the integrated numeric keypad
20 Chapter 4 Keyboard and pointing devices
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