HP 2760p manual Using keypads, Fn +f3

Hotkey combination	Description
fn+f3	Initiates Sleep, which saves your information in system. The display and other system components
	turn off and power is conserved.
	To exit Sleep, briefly slide the power button.
	CAUTION: To reduce the risk of information loss, save your work before initiating Sleep.
	NOTE: If a critical battery level occurs while the computer is in the Sleep state, the computer
	initiates Hibernation and the information stored is saved to the hard drive.
	The function of the fn+f3 hotkey can be changed. For example, you can set the fn+f3 hotkey to
	initiate Hibernation instead of Sleep. In all Windows operating system windows, references to the
	sleep button apply to the fn+f3 hotkey.
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 hotkey can also alternate images among other devices that are receiving video
	information from the computer.
fn+f5	Enables/disables the TouchPad.
fn+f8	Displays charge information for all installed batteries. The display indicates which batteries are
	charging and reports the amount of charge remaining in each battery.
fn+f9	Decreases the screen brightness level.
fn+f10	Increases the screen brightness level.
fn+f11	Activates and deactivates the ambient light sensor. When activated, the ambient light sensor
	automatically adjusts the display brightness based on the lighting conditions in your environment.

Using keypads

The computer includes either an embedded numeric keypad or an integrated numeric keypad. The computer also supports an optional external numeric keypad or an optional external keyboard that includes a numeric keypad.

20 Chapter 5 Keyboard and pointing devices