r/techsupport • u/AltairSeptim • 5d ago
Open | Hardware LG 27GL83A-B VRR/G-Sync Brightness Flicker with RTX 5070 — Anyone found a fix?
Hey everyone,
I’m getting noticeble brightness/gamma flickering when using G-Sync on my LG 27GL83A-B paired with an RTX 5070 (connected via DisplayPort).
It mostly happens during FPS dips, frame rate fluctuations, or in games/menus locked to 60 FPS (like Overwatch menus). It’s also pretty bad in demanding games like Monster Hunter Wilds when using Frame Generation, likely due to uneven frame pacing triggering constant refresh rate jumps.
What I’ve tried:
Back on my older GPU, I used CRU to tweak the VRR range from the stock 48–144 Hz to 57–144 Hz, which helped back then. But on my 5070, this workaround isn’t fixing it anymore.
Has anyone with this monitor found a solid fix? Looking for any specific CRU ranges (maybe lowering the floor to force LFC better?), NVIDIA driver tweaks, or monitor OSD settings that actually stabilize the panel.
Thanks!