Special keys and buttons

Your computer has several special keys and buttons to help you work more easily and effectively.

Function key combinations

To use the Fn function key combinations, press and hold the Fn key keys 2 . Release both keys.

1 ; then press one of the function

Power conservation

Fn+F4

Put your computer into sleep mode. To return to normal operation, press the Fn key.

Note: If you want to use the combination to put the computer into hibernation mode, change the settings in Power Manager.

Switching a display output location

Fn+F7

Switch the display output location between the computer display and an external monitor by selecting one of the following options:

Computer display only

Computer display and external monitor (same image)

Computer display and external monitor (Extended desktop function)

External monitor only

Note: The Windows+P key combination has the same function as Fn+F7.

Enabling or disabling the wireless features

Fn+F5

Enable or disable the built-in wireless networking features.

Note: To use this function, the following device drivers must be installed on your computer beforehand:

– Power Management driver

Chapter 2. Using your computer 21

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Lenovo 23539KU manual Special keys and buttons, Function key combinations, Power conservation Fn+F4