So, let’s say one second you have 48FPS, and therefore, 48Hz, and then, the next second, your FPS drops to 47FPS, and your refresh rate spikes up to 141Hz.īecause your monitor is brighter at higher refresh rates, brightness oscillates. For instance, at 47FPS, it gets tripled to 141Hz.
Now, LFC multiplies your framerate in order to eliminate tearing even when your FPS dips below the monitor’s VRR range. If your gaming monitor has a variable refresh rate range of 48-144Hz, it will trigger LFC (Low Framerate Compensation) once your FPS (Frames Per Second) hits 47FPS or less if you have an AMD graphics card. There are two main reasons you get brightness flickering: LFC and frequent FPS fluctuation. Let’s say you have a 144Hz VA gaming monitor with brightness flickering in some of your games. So, why does it happen, and what can you do to prevent it - if there’s no firmware fix? Reducing Brightness Flickering With AMD Cards If you do have brightness flickering on your monitor, the only way to fix it completely is via the manufacturer’s firmware update, if it exists. Note that Samsung addressed and fixed this issue by adding a ‘VRR Control’ option via a firmware update to their Odyssey G7 monitors.
It’s a bit of a mystery what’s behind all this, and there hasn’t been any official response by AMD/NVIDIA, but we do know that some units of monitors are simply more prone to having this issue. In some games, you might get unbearable brightness flickering In others, it might work flawlessly - and in some, it might only occur in loading screens or in-game menus.Īlso, keep in mind that one unit of a certain monitor may have this issue, but another unit of the same monitor may work perfectly fine! Now, this issue will not necessarily be present in every game. So, you just got a gaming monitor with a variable refresh rate technology and paired it with a compatible graphics card only to find that enabling FreeSync/G-SYNC Compatible causes horrendous brightness flickering?ĭon’t give up just yet because there are a few things you can try to prevent or at least reduce the flickering.įreeSync brightness flickering is most common on high refresh rate VA panels developed by Samsung, but it can also affect displays based on other panel technologies such as IPS and TN, though it’s rare.
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