Security Features - Lenovo ThinkPad X240 User Manual

• For the ThinkPad Ultra Dock, a maximum of three displays (including your computer display) can work at
the same time. As a result, if you connect three external displays to the ThinkPad Ultra Dock, the display
connected to the VGA connector will not work when your computer display is on.
– When the computer display is off:
– When the computer display is on:

Security features

The system lock key has two positions as shown in the drawing.
The security feature is different when the key is in different positions:
.
Chapter 7 Enhancing your computer
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