When a projector fails to display an image on the screen, the first step in troubleshooting is to inspect your laptop and the projector.
One of the first reasons is that you connected the projector and the information source incorrectly. It's also possible that your projector isn't displaying on the computer screen due to software issues.
To resolve this issue, make sure you're connecting your source device to the projector with the correct connection and adapter.
What is Projector?
A projector is an output device that can connect to a computer and can replace a monitor or television in terms of displaying images to a large group of people. It projects images from a Blu-ray player or computer onto a large surface such as a wall or white screen.
Projectors come in a variety of shapes and sizes and are used in a variety of settings such as classrooms, home theaters, office training or presentation sessions, and so on. The projector looks like the image below.
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