Chosen Solution
My laptop has stopped working with the projector. The projector works with another laptop. What is on my laptop desktop does not display on the projector screen. Tried holding down the FN key with all the other F keys.
You said your projector is worked on another laptop, so the projector is find, so i think this laptop maybe had no projector driver. So try to connect the projector to the laptop, check all the port and then enter the device manager, try to install the projector at first. And you can view here to learn how to install drivers. If the two laptops has the different system, you’d better see the system this projector support. Because some old projector maybe not supports windows 8, windows 10.
