Many desktop computers have integrated graphics available through an HDMI port on the motherboard itself.
That will help determine which component is at fault. To isolate the problem with your HDMI port not working, mix and match components in your connection with other devices to see if the issue is with the display, the computer, or the cable itself. If you see any kind of damage, replace or repair the components if possible. Check the cable to make sure it isn’t frayed or that the connectors aren’t deformed, corroded, or partially broken from the cable. Inspect the Cable and Ports for Damageīefore trying anything else, check the HDMI port on your computer and the one on the display for damage such as corrosion or a plug that sits loosely in the port. It’s not particularly expensive to buy a DVI, VGA, or DisplayPort to HDMI adapter these days. If your display only has an HDMI input, you can use an adapter.