Function (Fn) key combinations

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Function (Fn) key combinations - ThinkPad A21, A22

The following table shows the function of each combination of Fn with a function key.

The Fn key works independently from the operating system.

Key combination	Description
FN + F1	Reserved
FN + F2	Reserved
FN + F3	Turn off the LCD display, leaving the screen blank. To turn the LCD display on again, press any key or the TrackPoint stick.
FN + F4	Turn standby mode on. To return to normal operation, press the Fn key.
FN + F5	Reserved
FN + F6	Reserved
FN + F7	Switch between the LCD and an external monitor.
FN + F8	Turn screen expansion on or off. (There is no symbol on the key.)
FN + F9	Reserved
FN + F10	Reserved
FN + F11	Reserved
FN + F12	Turn hibernation mode on.
FN + PgUp	Turn the ThinkLight on or off.
FN + Home	The LCD becomes brighter.
FN + End	The LCD becomes less bright.
FN + Insert (for i-Series 1800 only)	Audio volume becomes bigger.
FN + Delete (for i-Series 1800 only)	Audio volume becomes smaller.
FN + Backspace (for i-Series 1800 only)	Mute

Country Availability
Available	Worldwide

Document ID : PD011728
Legacy Document ID : MIGR-4PCVUP
Last Updated :

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