How to fix no VGA signal

Written by j. anthony cooley
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How to fix no VGA signal
Check the VGA connections if your computer doesn't recognise the monitor. (Thinkstock Images/Comstock/Getty Images)

A VGA cable is best known as the standard connection used to connect a computer to a computer monitor. If your computer is not getting a VGA signal, odds are that you can correct the problem quickly without spending a lot of money by simply inspecting the cables and connections and making fixes as needed. This process of troubleshooting and fixing a problem with a VGA signal doesn't require any tools and only takes a few minutes to complete.

Skill level:


  1. 1

    Check the VGA connections from the VGA cable to the VGA ports on both the computer and the monitor. Make sure the security hand-screws are tightly screwed into the ports. These security screws are part of the VGA connection for a reason and should not be neglected.

  2. 2

    Check the VGA cable for damage. VGA cables are a bit rigid, and are more susceptible to damage by being bent than most other wires. Examine the cable for visible damage and feel around the entire wire for broken areas. If the VGA cable is damaged, replace it with a new one.

  3. 3

    Restart the computer. Sometimes errors occur in computers that cause the computer to not be recognised by the connected devices, such as the monitor. Restarting the computer gives the system a chance to start fresh and boot up recognising the VGA connection.

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