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Function (Fn) key combinations - ThinkPad A20

Fn key combinations

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. Press any key or the TrackPoint stick to turn the LCD display on again.
Fn + F4 Turn standby mode on. Press the Fn key to return to normal operation.
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 + EndThe LCD becomes less bright.



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Document ID : PD008696
Legacy Document ID : MIGR-4K9P54
Last Updated :
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