Lenovo T420 - Manual (Page 59)

Chapter 6. Fn key combinations
The following table shows the function of each combination of Fn with a function key.
Table 8. Fn key combinations
Key combination Description
Fn+F1 Reserved.
Fn+F2 Lock the computer.
Fn+F3 Select a power plan (in Windows XP, power scheme) that has been created by Power Manager,
or adjust the power level by using the slider control. When you press this combination, a
panel for selecting a power plan (power scheme) appears.
Notes:
To use this combination of the keys, ThinkPad PM device driver must have been installed
on the computer.
If you have logged on with an administrator user ID in Windows XP, and you press Fn+F3,
the panel for selecting a power scheme appears. If you have logged on with another user
ID in Windows XP, and you press Fn+F3, the panel does not appear.
Fn+F4 Put the computer in sleep (standby) mode. To return to normal operation, press the Fn key
only, without pressing a function key.
Notes:
To use this combination of the keys, ThinkPad PM device driver must have been installed
on the computer.
If you want to use the combination to put the computer into hibernation mode or
do-nothing mode (in Windows XP, shut the computer down or show the panel for turning
off the computer), change the settings in the Power Manager.
Fn+F5 Enable or disable the built-in wireless networking features. If you press Fn+F5, a list of wireless
features is displayed. You can quickly change the power state of each feature in the list.
Notes: If you want to use Fn+F5 to enable or disable the wireless features, the following
device drivers must be installed on the computer beforehand:
• Power Management driver
• OnScreen Display Utility
• Wireless device drivers
Fn+F6 Change the camera and audio settings. When you press Fn+F6, the camera and audio setting
window is opened and the camera preview is turned on.
Note: The camera settings area only appears if the computer has an integrated camera.
Fn+F7 Apply a presentation scheme directly, with no need to start Presentation Director.
To disable this function and use the Fn+F7 key combination for switching a display output
location, start Presentation Director, and change the settings.
Note: If the computer is an Windows 7 model, it does not support presentation schemes,
however the Fn+F7 combination might still be used to switch display output location.
For Windows 7:
Switch between the computer display and an external monitor. Windows will show these
display options:
• Computer display only (LCD)
• Computer display and external monitor (same image)
• Computer display and external monitor (extended desktop function)
• External monitor only
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