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 on 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 on the computer.
fn+f5 Mutes or restores speaker sound.
fn+ f6 Decreases speaker volume.
fn+f7 Increases speaker volume.
fn+f8 Mutes or restores microphone.
fn+f9 Decreases the screen brightness level.
fn+f10 Increases the screen brightness level.
fn+f11 Turns the keyboard backlight on and off.
NOTE: The keyboard backlight is turned on at the factory. To extend battery life, turn off the keyboard backlight.
fn+f12 Turns the wireless feature on or off.
NOTE: This key does not establish a wireless connection. To establish a wireless connection, a wireless network must be set up.
36 Chapter 7 Keyboard and pointing devices