Ghosting test
Blocks glide across your screen at three speeds. Follow them with your eyes — trails, smears, or bright halos reveal ghosting and overdrive problems. Esc to exit.
Ghosting FAQ
- What is monitor ghosting?
- Faint trails that follow moving objects because the pixels can't change color fast enough. It's a panel response-time problem — VA panels in dark scenes are the classic offenders — and it shows up in games as smearing behind anything that moves.
- How do I read this test?
- Track one of the moving squares with your eyes. A clean square with crisp edges is good; a visible tail fading behind it is ghosting. A bright halo or inverted-color edge in front or behind is overshoot — the monitor's overdrive is set too aggressively.
- How do I reduce ghosting?
- Find the overdrive setting in your monitor's menu (names vary: Overdrive, Response Time, Trace Free) and step it up until trails disappear — but back off if you start seeing bright halos. Also make sure the monitor actually runs at its advertised refresh rate; our refresh rate test confirms it in seconds.