To Use The Fn Hot Keys - HP Pavilion XF315 Startup Manual

Basic Operation
Operating Your Notebook

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.
Hot key Does this
Fn+F1 Decreases the display's brightness.
Fn+F2 Increases the display's brightness.
Fn+F5 Switches among the built-in display, an external display, and
simultaneous display on both.
Fn+F8 Toggles the embedded numeric keypad on and off.
Fn+F9 Toggles Num Lock on and off.
Fn+F10 Toggles Scroll Lock on and off (except on an external keyboard).
Fn+Home Toggles the sound on and off (mutes sound).
Fn+Page Up Increases sound volume (except on an external keyboard).
Fn+Page Down Decreases sound volume (except on an external keyboard).
External keyboards do not support Fn hot keys.
28 Startup Guide