How to Fix a Computer Screen That Turned Grey

By Mikhail Polenin

Monitors malfunction for numerous reasons. When a monitor turns grey, it might indicate an incorrectly connected display cable or a faulty graphics card. Before assuming assume your graphics card might be the problem, however, check the monitor. Several interactions from the computer to the monitor take place to display a single image---and any one of these interactions could be faulty.

Step 1

Look at the back of your monitor just below the socket for a voltage selector. Set the voltage appropriate to your country, if it isn't in the correct position already. For a monitor in USA, the voltage is 115 volts.

Step 2

Check the display cable to make sure it is properly connected with the metal connector engulfing the display socket on the computer.

Step 3

Disconnect the monitor's display cable and look at its pins. If any of them appear bent, straighten them out by disconnecting the power cable from your monitor and sticking a thin metal object next to the pin and levering the pin until it appears straight again.

Step 4

Adjust the brightness and contrast knobs on the monitor. The settings may have been at minimum or maximum; adjusting the knobs will help return the settings back to an optimal position.

Tips & Warnings

  • If themonitor still has problems after following the steps, take the monitor and the computer unit to a repair center for a replacement graphics card.