PC Perspective measured this effect by taking continuous brightness readings in EVE Online with an Asus ROG Swift monitor. What you are seeing are the pixels intermittently bleeding towards white and periodically being pulled back down to the appropriate brightness by a scan. G-Sync displays can’t simply stop refreshing the image when that happens, so a failsafe measure kicks in:Ĭompletely stopping the panel refresh would result in all TN pixels bleeding towards white, so G-Sync has a built-in failsafe to prevent this by forcing a redraw every ~33 msec. Turns out the issue has to do with the way G-Sync handles “stalls” in game animation-that is, cases where the frame rate briefly dips to zero, as on some loading screens or when content loads in the background.
The guys at PC Perspective did a little sleuthing this week, and they’ve both confirmed the problem and identified its cause. But they’re not perfect: some users have been reporting slight flickering in some games. Displays equipped with Nvidia’s G-Sync variable-refresh tech are pretty great.
