Monitor Ghosting: What It Is, What Causes It, and How to Fix It
Monitor ghosting is a trail or smear around a moving object. Slow pixel transitions can contribute to it, while overly aggressive overdrive can create extra outlines. Motion blur, uneven frame delivery and artifacts in the source can look similar. Start with a controlled comparison instead of assuming the panel needs a particular setting.
Open the monitor ghosting test on the screen you want to check. It provides a moving pattern for visual inspection; it does not measure the panel's response time in milliseconds or certify a defect.
Ghosting, overshoot and motion blur
- Transition trails: a moving edge can leave a darker or lighter smear while pixels change between tones. Dark transitions can be especially noticeable on some displays.
- Overdrive artifacts: a response-time setting can push a transition past its target, producing an unnatural outline or false color. Brightness and position alone are not enough to diagnose the cause.
- Motion blur: broader softness while tracking movement can involve frame persistence, refresh rate, the source image and eye movement. It is not automatically a slow-pixel defect.
EIZO's explanation of response time and overdrive describes why faster transitions and stronger overdrive can involve a trade-off. A single advertised response-time number does not describe every transition or setting.
Make the comparison repeatable
- Record the monitor model, input, picture mode, selected refresh rate and overdrive or response-time setting. Use a comfortable brightness and the same viewing distance.
- Keep the browser on the display you are inspecting, with the same zoom and speed preset. Compare the same direction of motion and the same part of the pattern.
- Start from the manufacturer's default for the mode you use. Record it so you can restore it; there is no universal best middle or maximum setting.
- If the manual offers an overdrive control, compare one nearby setting at a time. Look for the balance between reduced smearing and newly added outlines.
- Keep the refresh rate unchanged during this comparison. If you change it, start a separate comparison and record the new conditions.
- Recheck ordinary scrolling, video or a familiar game. A result that only looks better in one test pattern may not be better for daily use.
The current browser test moves its pattern in steps on animation frames. Changing the refresh rate can also change its apparent speed, even when the speed button stays the same. It is a comparison aid under recorded conditions, not a calibrated pursuit-camera or laboratory measurement.
Check the display settings separately
Confirm the selected display and refresh rate in the operating system, and in the monitor's own information menu if available. In Windows, use Settings > System > Display > Advanced display. Microsoft's refresh-rate instructions explain where to check the setting and why available rates depend on the display and supported modes.
Our refresh-rate test estimates browser frame cadence. Background tabs, load and browser behavior can affect it; use it alongside the display settings rather than treating it as proof of the panel's physical refresh rate. A higher rate can change motion appearance, but it does not guarantee that every transition becomes clean.
Interpret changes before choosing a setting
- A stronger setting reduces smearing without obvious new outlines: compare it again in normal content before keeping it.
- A stronger setting creates bright, dark or colored outlines: return to the reference or try a weaker setting. Do not assume the maximum is best.
- The browser pattern stutters: first compare with other activity paused and the tab in the foreground. Uneven animation is not a response-time reading.
- Only one game or video shows the issue: compare another source on the same display. Source effects and frame delivery deserve investigation before changing the whole monitor.
When to contact support
If the effect is distracting in everyday use, record the conditions and whether it appears across multiple sources. Keep an overall photograph or short video and the original files. Camera exposure, focus and movement can change how a trail looks, so describe what you see directly as well.
Compare your exact model's manual and contact the seller or manufacturer if you need a diagnosis. Return and warranty decisions depend on the purchase and applicable terms; a browser pattern alone cannot establish eligibility.
Next step: run the ghosting test, compare the default with one nearby overdrive setting at the same refresh rate, and keep notes on what changes.