If your computer screen or external display goes black when HDMI is plugged in, check your HDMI setup. Use these fixes to resolve the issue.

Not sure whether to hook your new monitor up to your computer using HDMI or DisplayPort? Different ports have different capabilities and compatibilities; here's what you need to know.

A projector can double as a secondary monitor when you connected it to your PC. This setup enables you to extend or duplicate your computer's display onto a massive canvas, so that you can view ...

Duet Display lets you use any Android device as a second screen for your Mac, whether wired or wireless, giving you extra space for multitasking.