ComputerBill's Computer Repair
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Display problems offer a variety of possible symptoms.
If there is nothing on the display and the amber or green light on the front of the monitor is unlit, you have a power problem. If your computer lights up and makes sounds when you turn it on you know there is power reaching the end of the power cord going into the back of your computer chassis so try using this cord for your monitor. If the monitor does not power up, you need to seek the services of a monitor repair facility.
If the light on the front of the monitor remains amber or blinks and you hear one beep from your computer when it starts up, the monitor is not receiving a signal from your computer even though the computer detects the presence of a monitor. Check the integrity of the connection between the monitor and the back of your computer chassis. If the connection is ok, try a different monitor if possible, or seek the services of a monitor repair facility.
If the light on the front of the monitor turns green and you hear one beep from your computer when it starts up, make sure that the brightness and/or contrast adjustments on your computer are properly set.
If the light on the front of the monitor is illuminated but the computer makes a series of beeps upon start up, your computer is sending an audible message that it does not detect the presence of a way to communicate with you visually. The display adapter is a likely suspect so ensure that it is seated properly. If this does not correct the problem try replacing the display adapter card.
If your computer starts up but the output to the screen looks garbled, as if there are multiple copies of the desktop overlapping each other, your display driver has probably been accidentally changed. Start in safe mode and re-install the correct drivers for your video adapter.
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ComputerBill's Computer Repair. All rights reserved. Last reviewed: 21 June 2001