Monitor Test & Pixels

Detect dead or stuck pixels and inspect your display with a browser-based monitor diagnostic tool.

How to interpret the monitor test

Black dots that never change are usually dead pixels. Bright single-color dots are more often stuck subpixels that may still respond to cycling.

This page is best for visual confirmation, while refresh-rate verification is clearer on the dedicated refresh test route.

What to try next if the panel looks wrong

Use the refresh rate test next if motion still feels off after the panel passes basic color inspection.

If touch is involved on a tablet or all-in-one display, run the touchscreen test to see whether the issue is panel-only or also affects input.