Toshiba M400 - Manual (Page 140)

5-4 User’s Manual
The Keyboard
Power Plan: Pressing Fn + F2 changes the power settings.
Sleep: Pressing Fn + F3 switches the system to Sleep mode.
Hibernate: Pressing Fn + F4 switches the system to Hibernate mode.
Output: Pressing Fn + F5 changes the active display device.
Brightness (Down): Pressing Fn + F6 decreases the computer's display
panel brightness in individual steps.
Brightness (Up): Pressing Fn + F7 increases the computer's display panel
brightness in individual steps.
Wireless: Pressing Fn + F8 switches the active wireless devices if the
wireless communication switch is switched on.
If no wireless communication device is installed, no dialog box will appear.