Why Is My Laptop Screen Blinking?

Written by jennifer moore
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Why Is My Laptop Screen Blinking?
Troubleshoot screen-flickering issues. (www laptop image by Photoeyes from Fotolia.com)

Screen flickering can be caused by a simple screen configuration issue, or by a more complicated hardware issue, like a backlight or connector failure. Display configuration can be offset and changed by recently downloaded programs or updates, so the correct settings should first be verified. If these are correct then the cause of the flickering is usually hardware related.

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Display Configuration

A flickering screen may be caused by the computer detecting incorrect display settings as it starts or returns from sleep. It can also come from changes to the screen resolution settings caused by a new program or update installation. Verify screen resolution before assuming the issue is hardware related.

Faulty Inverter

Next to the display screen behind the plastic screen bezel is a small component called the inverter, which supplies power to the screen backlight. The flickering indicates the power is not reaching the backlight. To fix the issue, replace the inverter.

Faulty Connectors

The wires and cables travelling from the display around the hinges and into the motherboard tend to wear at the hinge area. Over time, the opening and closing of the screen causes this wear. The solution is to disassemble the plastic casing of the laptop, reorganise the cables so they have no interference from hinges, or replace the cables and connectors with new ones made specifically for the computer make and model experiencing the issue.

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