Laptop: Find and fix pixel errors

This guide shows you how to find and fix a pixel error on your laptop.

Laptop: Find pixel errors on the display

In many cases, pixel errors on laptops are immediately visible. If you are still not quite sure whether your laptop has a pixel error, you can find out quite easily. This also helps you to check the number of pixel errors more precisely, because from a certain number you can also return your laptop and replace it.

1. Download the freeware Dead Pixel Tester. You do not have to install the program. The first time you click on the EXE file, you can start looking for dead pixels.
2. Click the screen several times. The image area is colored in different colors. A pixel error does not color and is therefore clearly recognizable.
3. With the free software, entire tests can be run. In the Pattern area, select different patterns and optical illusions to make pixel errors visible. The "Exerciser" can be used to form small rectangles that automatically play different colors.

Laptop: fix pixel error

If the manufacturer refuses an exchange, you have to do your own hand to correct the error. In some cases, the pixel can be revived. Dead pixels without luminosity can no longer be reanimated.

1. Install the free program UndeadPixel and start the freeware.
2. Once you have located the pixel error, you can start the software by clicking on "Start" under "Undead Pixel". A square appears on the screen that changes colors.
3. You can drag and drop the square over the position of the defective pixel. The constant color change should run for a few hours. With a little luck, the pixel will be fully functional again.
4. Note that you can no longer revive completely black pixels. If you want to end the process, click on "Reset".