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Connecting an external display to the ThinkPad Mini Dock Plus Series 3
Group 1 (top gure) and Group 2 (lower gure) are independent of each other. Each has a DisplayPort and a
digital visual interface. If you connect a display to a DisplayPort and a DVI that are in the same group, the
DisplayPort is inactive.
Detaching a ThinkPad port replicator or docking station
To detach your computer from the ThinkPad Mini Dock Series 3, or the ThinkPad Mini Dock Plus Series 3,
do the following:
1. Make sure that:
• The devices connected to USB connectors are not in use.
• The connection to an Ethernet port has been ended.
• The devices connected to an eSATA port are not in use.
2. Make sure that the system lock key of the ThinkPad Mini Dock Series 3, or the ThinkPad Mini Dock
Plus Series 3 is in place and in the unlocked (horizontal) position.
Chapter 7. Enhancing your computer 127