Using Basic Projector Features
Monitoring and Controlling the Projector
If the projector and the notebook don’t display the same image:
Hold down the Windows key and press P on your keyboard at the same time, then click Duplicate.
If the same image is not displayed by the laptop and projector, check the Windows Display utility to make sure the external monitor port is enabled and extended desktop mode is disabled.
If necessary, check your video card settings and set the multiple display option to Mirror or Duplicate.