HP (Hewlett-Packard) 810 G1 D3K50UT 用户手册

A hot key is a combination of the 

fn

 key (1) and either the 

esc

 key (2), or one of the function keys (3).

To use a hot key:

Briefly press the 

fn

 key, and then briefly press the second key of the hot key combination.

 

fn

+

esc

Displays system information

fn

+

f2

Displays the Power Options window.

fn

+

f3

Initiates Sleep, which saves your information in system memory. The display and other system
components turn off and power is conserved.

To exit Sleep, briefly press the power button.

To reduce the risk of information loss, save your work before initiating Sleep.

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.

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Chapter 4   Navigating using the keyboard, touch gestures and pointing devices