How to Use a HDMI Port in a Computer

An HDMI (High-Definition Multimedia Interface) cable transmits digital video and audio signals between electronic components such as a computer and HDTV. The HDMI port on the back of these components is the connection point for the cable, which features a distinctive six-sided plug on each end. Each plug contains 19 steel connector pins that correspond to the 19 holes in an HDMI port. The pins transmit high-definition video and up to eight channels of digital audio.

Ports along edge of laptop computer
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Step

Insert the plug on one end of an HDMI cable into the HDMI Output port on the back of the computer's central processing unit (CPU) or the back edge of a laptop. The wider end of the plug must be turned upward to fit the port.

Step

Connect the other end of the cable to another audio/video device with an HDMI Input port, such as an HDTV.

Step

Turn on the computer and wait for the "New Hardware Detected" message to display on the monitor or laptop screen.

Step

Double-click "Display Settings" in the computer's control panel to switch the display output over to the HDTV. Clicking the "Advanced" tab under display settings allows the user to adjust the resolution from the computer to a resolution supported by the HDTV. Check the HDTV owner's manual to determine the resolution for that particular model.

Step

Click "Save Settings."

Step

Use the computer, with an Internet connection, to transmit Web content to the HDTV. Discs can be played back from the computer's DVD or Blu-ray player for enjoying movies with digital sound on the HDTV.