Basic Operation 
Operating Your Notebook 
 
32  Reference Guide 
 
To use the Fn hot keys 
 
The combination of the Fn key plus another key creates a hot key—a shortcut key 
sequence—for various system controls. 
?? To use a hot key, press and hold Fn, press the appropriate second key, then release 
both keys.  
This hot key  Does this 
Fn+F1  Decreases the display brightness. 
Fn+F2  Increases the display brightness.  
Fn+F5  Toggles among the built-in display, an external display, and simultaneous display 
on both.  
Fn+F8  Toggles the built-in keypad on and off. Does not affect an external keyboard. If 
Num Lock is on, the numeric functions are active; otherwise, cursor control is 
active (as marked on an external keyboard).  
Fn+Num Lock 
   
Toggles Scroll Lock on and off.  
Fn+Page Up 
   
Increases the volume (and turns audio on if muted).  
Fn+Page Down 
   
Decreases the volume.  
Fn+Backspace  Toggles the mute function on and off.  
Fn+any One-Touch button  Toggles the One-Touch button LEDs on and off (selected models).  
External keyboards do not support Fn hot keys.