Q. I have hooked my laptop to a TV/External monitor/Projector and it isn’t displaying anything

Have you pressed the key that controls screen mirroring?  On Toshiba notebooks it is usually Function F5, or consult your manual.

On Windows 7, hit Windows-P  or right-click on the desktop and choose Graphic Properties.
Or go into Control Panel and set up the display properties Appearance: Display: Connect to an external display.

Make sure that the source input on the external display is switched to the input that the computer is cabled into.

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