What are the requirements for a portable Win7 system external monitor

1, first we need to prepare the monitor should match the notebook monitor.

2, then we can be in the distance also need to consider, in the same work surface, transmission distance, with the ordinary VGA interface can be; if the external monitor is placed far away, the external monitor must have HDMI high-definition interface and with long-distance transmission of the HDMI line long enough.

3, finally we can in the notebook and monitor connection, the use of win+p key combination of the adjustment interface is completed.