There is a possibility that an outdated and corrupted display adapter driver is causing the problem. You can download the display adapter driver from its manufacturer ...

Use the following suggestions if your keyboard or mouse is not working in the BIOS or firmware settings of your Windows computer: Connect your keyboard or mouse to all available USB ports and see if ...

You must have a short in the plug. Just exactly which plug are you refering to? On the computer? Do you have only one? If you have one that still works you might have to get a hub and only use it. Or ...