Using 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.

External keyboards support only Fn+F5, Fn+F7, and Fn+F12. To use these, press and hold left CTRL+left ALT, press the appropriate second key, then release both keys.

Hot Key

Fn+F1

Fn+F2

Fn+F5

Fn+F7

Fn+F8

Fn+F12

Fn+NumLock

Fn+Up arrow

Fn+Down arrow

Table 1-1. Fn Hot Keys

Effect

Decreases the display brightness.

Increases the display brightness.

Toggles among the built-in display, an external display, and simultaneous display on both.

Mutes the notebook’s speakers.

Toggles the built-in numeric 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.

Enters Hibernate mode (Windows 2000 only).

Toggles Scroll Lock on and off (except on external keyboards).

Increases sound volume (except on external keyboards).

Decreases sound volume (except on external keyboards).

HP OmniBook XE3

Product Information

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