The first thing to check is whether the projector is connected and switched on. You should then check if you have switched to the external display on your laptop – this is usually a key press – Alt + F4 for example to toggle the screen.
The first thing to check is whether the projector is connected and switched on. You should then check if you have switched to the external display on your laptop – this is usually a key press – Alt + F4 for example to toggle the screen.