If moving objects in fast games leave a faint smeared trail behind them, you are seeing ghosting. It is one of the most common motion-clarity complaints on gaming monitors, and the good news is that most of it is fixable with a couple of settings rather than a new panel. Here is what causes ghosting, how it differs from other artifacts, and how to dial it out.
What ghosting actually is
Ghosting happens when a pixel cannot change color fast enough to keep up with the refresh rate. As the image moves, the slow pixel lingers on its old value for a moment, producing a trailing shadow. It is driven by pixel response time: how many milliseconds a pixel needs to shift from one shade to another, usually measured gray-to-gray (GtG).
Ghosting vs overshoot vs coronas
Push the monitor’s overdrive setting too hard and you swap ghosting for overshoot, sometimes called inverse ghosting or coronas: a bright halo or reverse trail. The goal is the sweet spot between the two, where trails are minimal and no halos appear.
| Panel type | Typical GtG | Ghosting tendency |
|---|---|---|
| TN | 1 ms | Low |
| Fast IPS | 1-3 ms | Low to moderate |
| Standard IPS | 4-5 ms | Moderate |
| VA | 4-8 ms (dark transitions slower) | Higher in dark scenes |
How to fix ghosting
Tune overdrive first
Open your monitor’s OSD and find the response-time or overdrive setting, often labeled Normal, Fast, Faster, or with names like OD or Trace Free. Set it one step at a time and test with a moving test pattern. Choose the highest level that does not introduce a bright halo behind moving objects. On many panels the middle setting is ideal; the maximum setting usually overshoots.
Check the rest of the chain
Make sure you are running the panel at its rated refresh rate, not a fallback 60 Hz. Confirm the cable and port support that refresh. VA panels smear most in dark scenes, so a slight brightness or black-level adjustment can help. If variable refresh rate is causing overdrive to behave inconsistently at low frame rates, a firmware update sometimes adds variable overdrive.
How to test for ghosting
Do not tune overdrive by eye in a random game; use a repeatable test so you can compare settings fairly. Online motion tests display a moving object, often a UFO or a row of boxes, that scrolls across the screen at a fixed speed, making trails and overshoot easy to spot.
The test procedure
Open a moving-object test at your monitor’s full refresh rate. Cycle through each overdrive level one at a time. Watch the trailing edge of the moving object: with too little overdrive you see a soft smear behind it, and with too much you see a bright halo or a dark inverse trail ahead of it. The best setting is the one with the shortest trail and no visible halo.
Record what you find
Note which level looked cleanest, because monitors sometimes label the maximum setting in a way that sounds best but actually overshoots the worst. Many panels are ideal at their middle overdrive step. If no setting is fully clean, the panel’s pixels are simply at their limit, and you have found the practical best rather than a fault to keep chasing.
FAQ
Does a higher refresh rate reduce ghosting?
Indirectly. A higher refresh rate shortens the time each frame is shown, so any given amount of pixel lag covers less on-screen distance and looks cleaner. But if the panel’s pixels are genuinely slow, raising refresh alone will not fully cure it; you still need correct overdrive.
Is ghosting the same as screen tearing?
No. Ghosting is a smeared trail from slow pixels and is a hardware response-time issue. Tearing is a split image where the top and bottom show different frames, caused by the GPU and display being out of sync. They have different fixes: overdrive for ghosting, VRR or V-Sync for tearing.
Bottom line: Ghosting is slow pixel response leaving trails. Fix it by tuning overdrive to the highest setting that avoids halos, running the panel at its full refresh rate, and updating firmware if variable overdrive is available. VA panels will always trail a little in dark scenes, so set expectations by panel type.
