Custom Resolution Utility (CRU)

[ToastyX]

(09-04-2025 11:27 PM)Mystery D Wrote:  Perhaps flicker wasn't the correct term, or I should have been more detailed. By flicker I mean the image never disappears. It just seems to shift rapidly in brightness but only when the frame rate drops below the bottom limit of the VRR range. For example, during loading screens that have a 30fps cap, or if you're otherwise seeing a low framerate output. Regular gameplay seems fine, long as the frame rate is above 48ish fps.

I guess my real question is what should I be doing to ensure I'm getting the best experience? I have already disabled Freesync in the extension block.

I'm aware of what you mean. That's a monitor limitation and not an inherent limitation of VRR. The real answer is to get a monitor that doesn't have that problem. This is why NVIDIA has G-SYNC certification because some monitors just have poor VRR implementations.

All you can do with your current monitor is either reduce the VRR range to try to reduce the flicker, or disable VRR if the flicker is causing too much trouble. When I say reduce the VRR range, I mean either increasing the minimum refresh rate or switching to a lower refresh rate to reduce the maximum. NVIDIA ignores the FreeSync data block so that makes no difference.

LFC is low frame rate compensation, which basically repeats frames at lower frame rates so the refresh rate is within the range, so 30 FPS becomes 60 Hz. If you raise the minimum to 65 Hz, 30 FPS will become 90 Hz. The maximum refresh rate needs to be at least twice the minimum refresh rate for LFC to cover all refresh rates below the minimum.

Normally you don't need to reduce the maximum. You can just switch to a lower refresh rate. The current refresh rate automatically becomes the maximum if it's within range, so if the VRR range is 48-144 Hz and you switch to 100 Hz, the range becomes 48-100 Hz.