Symptoms
- Faint trailing image behind moving objects, especially in games or fast video
- Trails are more visible on dark backgrounds
- Problem is worse at higher refresh rates
- Text or cursor leaves a faint smear when moved quickly
Likely causes
- CommonResponse time (overdrive) setting too lowMost monitors have an adjustable pixel response setting that reduces ghosting when raised.
- CommonRefresh rate set below the monitor's capabilityRunning at a lower refresh rate than the panel supports can make motion look blurrier.
- PossibleVSync or adaptive sync misconfiguredSync settings interacting poorly with the game or app can cause visible ghosting or judder.
- PossiblePanel technology limitationSome budget VA panels naturally have more ghosting than IPS or TN panels, which is a hardware trait, not a fault.
What to do
- Open the monitor's on-screen menu and find the Response Time or Overdrive setting, then try raising it one level at a time.
- Confirm the display is running at its maximum supported refresh rate in Display Settings.
- In the graphics driver's control panel, enable or disable VSync/G-Sync/FreeSync and compare which setting reduces ghosting for your use case.
- Test with a dedicated motion test website (search 'UFO test ghosting') to compare settings side by side.
- If overdrive is already high and ghosting looks like a bright trailing halo instead of a faint smear, lower the overdrive setting one notch, since too-high overdrive causes its own artifact called 'inverse ghosting.'
- Accept that some panel types (typically budget VA panels) have inherently more ghosting; if this is unacceptable, an IPS or TN panel of similar size will generally show less.
Tools and parts
- None
When to call a pro
This is a settings and panel-technology issue rather than something to repair; if ghosting is unacceptable after tuning settings, a different monitor with a faster panel type would be the practical fix.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.