Confirm the panel and the cable
Variable refresh needs a display that supports it and a cable with the bandwidth. A 144 Hz panel over an old HDMI cable can drop the feature without any error.
Settings > System > Display > Advanced display
A visible tear line means the frames and the panel are out of step. The fix is either variable refresh or a frame cap, and mixing the two badly makes it worse.
Enable **variable refresh rate** for the display, cap the frame rate a few frames **below** the refresh rate, and disable the driver's own sync override. Tearing with VRR on is usually a windowed-mode problem.
Variable refresh needs a display that supports it and a cable with the bandwidth. A 144 Hz panel over an old HDMI cable can drop the feature without any error.
Settings > System > Display > Advanced display
Windows 11 has its own toggle for variable refresh. It must be on for the driver's mode to apply to windowed and borderless applications.
Settings > System > Display > Graphics > Default graphics settings
A frame rate at or above the panel maximum leaves the variable range and tearing returns at the top edge. Three to five frames below keeps the display inside the range.
Driver vertical sync plus a variable refresh display plus a game-level limiter is three controls arguing. Use variable refresh and a cap; leave vertical sync off or set to the driver-managed option.
Borderless windowed goes through the desktop compositor, which is where a missing Windows toggle shows up. If only windowed mode tears, that toggle is the answer.
Some panels have an overdrive or a sync setting in their menu that overrides the driver. A menu entry named Adaptive Sync or FreeSync must be on as well.
The display or the cable does not report support. Try a certified cable and a different port.
The frame rate exceeded the range. Lower the cap.
A known panel issue in a low frame range. Raise the minimum or limit the frame rate.
The cap is too far below the refresh rate. Move it closer to the maximum.
For a locked 60 Hz panel with a stable frame rate it is fine. With variable refresh it adds latency.
Only if the internal panel supports variable refresh and the GPU is driving it directly.
Turn off the variable refresh toggle in Windows, remove the frame cap and restore the driver's previous sync mode. Tearing returns to its earlier behaviour.
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