Originally Posted by Smokey the Bear
I can confirm on my unit that the scan lines don't need to have g-sync active to appear. It's simply turning on OC mode, and even with g-sync disabled I'm seeing them on grey's - took me this long to see that. Even when it's OCed to 75hz.
Ok but how could you explain why scanilnes to completely disappear everytime FPS are near the maximum refresh rate defined in OSD?
Why are they more noticeable when FPS go down?
I just finished some tests using Pendulum Demo (as we can switch Gsync On & Off) and there are the results :
1 - Overclock disabled / 60hz Nvidia Panel
No scanlines Gsync Gsync On or Off EXCEPT when moving FPS slider down to under 20-25fps. Then I notice the scanlines again when Gsync is ON.
Also, when ticking Gsync On & Off at low FPS, the upper screen flickers, especially when moving the mouse.
2 - Overclock enabled (75hz in OSD) / 60hz Nivida Panel
I wanted to see if when remaining at 60hz with OC ON, the scanlines would occur with Gsync.
So here it is, I can see them at 40 constant FPS & 40-60.
They disappear when I disable Gsync or when I move the slider to the max (60 fps)
I would have expected no scanlines but maybe it's because the refresh rate is internally set at 75hz.
So I'm going further
3 - Overclock enabled (75hz) / 75hz Nvidia Panel
Scanlines when Gsync enabled at 60 FPS and below but completely disappear when I moved the FPS slider to 75.
4 - I made the exact same test for 85/95/100hz
At 85hz, I could still see the scanlines at 75 FPS when they were not present with 75hz test (or at least noticeable) but disappear when approaching 82-85 FPS
Same result for 95/100hz
Also, scanlines strenght was the same in all different tests. They are as much perceptible at 60hz or 100hz.
To me, it has to do with the Gsync unit.
I did a test with 100hz overclock / Gsync disabled and absolutely none artefact/scanline nor frame skipping.Edited by Dr Mad - 11/8/15 at 12:19pm