How to use the function (Fn) keys on the keyboard - ThinkPad R40, R40e
The following table shows what each function key (Fn) key on your keyboard is for and how to use them.
Note:
The Fn key works independently of 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
Put the computer in standby mode. To return to normal operation, press the Fn key independently, without pressing a function key.
Note: In Windows 2000 and Windows XP, this combination of buttons functions as a sleep button. The setting can be changed so that pressing it puts the computer into hibernation mode or even shuts the computer down.
Fn + F5
Turn the Bluetooth on or off.
Fn + F6
Reserved.
Fn + F7
Switch between the LCD and an external monitor (CRT). If a CRT is attached, computer output is displayed in the following three patterns by turns:
CRT
LCD + CRT
LCD
Fn + F8
Switch the computer screen size between expanded and normal mode if the computer display image is smaller than the physical display.
Note: This function is not supported in Windows 2000 and Windows XP.
Fn + F9
Turn off the Easy Eject on or off.
Fn + F10
Reserved.
Fn + F11
Reserved.
Fn + F12
Put the computer into hibernation mode. To return to normal operation, press the power button for less than four seconds.
Note:: In Windows 2000 and Windows XP, you can use Fn+F12 for hibernation only if the PM device driver has been installed on the computer.
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