My Laptop Goes Pixelated When the Power Is Plugged In
Your laptop's screen shouldn't ever go fuzzy or "pixelated," regardless of whether the computer is plugged into a power source, such as a wall outlet. If you notice that the screen becomes pixelated after you plug the laptop into a power source, you can attempt to resolve the problem yourself before seeking professional repair services.
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Outlet Problem
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Before you jump to conclusions about a failure with your system's hardware, rule out the possibility of external causes of pixelation. If you typically plug the computer into a particular outlet or power strip, plug it into a different one and see if the pixelation continues. If it doesn't, the problem is with the outlet itself, one you should address with a professional electrician before plugging anything else into it.
Adapter Problem
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Alternatively, your laptop's power adapter may be faulty. Diagnosing this is trickier, since it requires that you obtain another adapter compatible with your laptop. If you experience pixelation only with the original power adapter, you know that the problem is with that particular power adapter, rather than with the computer itself.
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Video or Graphics Card
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If you aren't able to isolate the problem to a particular wall outlet or power adapter, or if the pixelation continues even after you unplug the computer, a problem may exist with the computer's graphics and/or video card. Graphics and video cards are computer hardware that allow a computer to render images and video. Pixelation on the screen may indicate a malfunction with one or both of these hardware components.
Repair Services
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You shouldn't try to repair or replace a graphics or video card on your own unless you are trained in computer repair. Taking the computer to a professional repair specialist not only guarantees prompt and proper repair of graphics and video card problems, but also enables you to get a checkup of the general health and well-being of your computer.
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