Guide to Dead and Stuck Pixels on an LCD Monitor

A single abnormal pixel can be distracting, but the right response depends on whether it is actually dead, stuck, or only appears wrong in one application.

Dead pixel vs. stuck pixel

• A dead pixel generally remains black because the pixel is not producing visible light.
• A stuck pixel/subpixel may stay red, green, blue, white, or another fixed color.
• Dust, image-retention effects, scaling artifacts, and software overlays can sometimes look like pixel defects.

1. Confirm the defect

Display full-screen solid colors—black, white, red, green, and blue—and check whether the same point remains abnormal. Also test another input or operating system if available.

Take care with browser-based flashing “pixel fixer” tools if you are sensitive to flashing light or have a photosensitive condition.

2. Power-cycle the display

Turn the display fully off, disconnect power briefly if the manufacturer permits it, then reconnect and retest. For a laptop, a normal restart is sufficient.

3. Check the warranty policy

Monitor and laptop manufacturers define their own pixel-defect thresholds. If the panel is new or covered by warranty, document the defect and contact the manufacturer before trying physical methods.

Avoid pressing, rubbing, or striking the panel

Older guides often suggested massaging or pressing a stuck pixel. That can damage the LCD layers or create additional defects, so it is not recommended here.

Software cannot repair a physically failed pixel. If a defect persists across inputs and test colors, the practical options are warranty service, panel replacement, or living with the pixel.