Monitor Ghosting Test - Check Overdrive and Motion Trails
Run a monitor ghosting test with moving shapes to compare dark trails, motion blur, inverse ghosting and overdrive artifacts at different speeds.
Quick answer
A monitor ghosting test moves high-contrast shapes across different backgrounds to reveal dark trails, blur, bright inverse ghosting and overdrive overshoot.
Method: ScreenTestKit generates the test surface in your browser. Results depend on visual inspection; the site does not read or diagnose physical panel hardware.
How to use this test
- Set the monitor to the refresh rate and response mode you normally use.
- Compare slow and fast motion on light, gray and dark backgrounds.
- Change one overdrive or response-time setting at a time.
- Run the refresh rate test if motion looks uneven or stutters.
What to watch for
- Dark trails that follow moving objects.
- Bright halos or inverse trails caused by aggressive overdrive.
- Blur that changes with refresh rate, brightness or response mode.
- Browser stutter that can be mistaken for panel ghosting.
How to interpret results
Dark trail
The pixels may be transitioning slowly; compare another response-time mode if available.
Bright inverse trail
This often indicates overdrive overshoot, so try a less aggressive setting.
Uneven movement
Check browser load, power saving and refresh rate before judging pixel response.
Frequently asked questions
Is ghosting the same as motion blur?
Not exactly. Ghosting is a visible trail from pixel response, while motion blur can also come from sample-and-hold display behavior or content.
Can a browser measure response time?
No. This test supports visual comparison but does not produce a laboratory response-time measurement.