These days, if you need to connect two devices via wire, you'll most likely use HDMI. This display protocol supports all sorts of device pairings. It lets you use your iPhone with an external display, ...

Knowing the difference between HDMI and USB qualifies me as the local tech “expert,” so folks often invite me around to fix their computer problems. I’ll let you into a little secret, though: Most of ...

Computer screens, like any component of a computer system, work or fail to work because of a series of possible factors: the input from the computer, the settings on the screen, and the performance of ...

Cycle TV inputs first — you may be on the wrong one. Swap the cable to another device to see if the cable or device is faulty. Inspect the HDMI for frays or exposed wires; braided cables resist damage ...

When desktop PCs have hardware problems, the solution is usually pretty simple: Find the part that isn’t working, pull it out, and replace it. Laptop ailments, however, aren’t quite so easy to cure.