...
Press the FN (Function) and F8 keys simultaneously to make sure the laptop is not set to view from an external device like a projector or external monitor.
If you're using a docking station, restart the laptop and ensure it is properly docked, if you have issues pairing your devices to the docking station see the section below for instructions on how to restart the docking station.
Restart the computer.
Restart docking station
Unplug the docking station from the power source.
Hold the power button down for 30 seconds.
Reconnect to the power source.
The docking station should redetect devices plugged into it.
Remove black border around laptop screen
...