G-Sync with little input lag

xTommy92 · 21 Dec 2016 at 21:10

Hi Guys,

Recently I disabled G-sync on Doom due to the stuttering and fps drops it was causing but only today I turned it back on to find the issues have gone so decided to leave it on. Problem is I noticed a considerable amount of input lag compared to it off, I am also noticing it in other games now.
Is there a way of cancelling this and getting no input lag? I am really enjoying G-sync at the moment and would love to keep it enabled but just can't bear input lag.

I heard on advertisements and forums that G-sync eliminated input lag, clearly not..

Anyone got any ideas?

Thanks,
Tom

xTommy92 · 21 Dec 2016 at 22:21

I have found out that setting a FPS limit slightly below my refresh rate (61FPS on 63hz Refresh) has cleared up the input lag and feels instantly responsive but I get microstutter using Nvidia Inspector FPS limiter. I have also tried RTSS on Afterburner but it doesn't seem to be recognized in-game for some reason.

I set V-sync to Adaptive as some people were saying that it runs smoother but I'm not 100% hahaha.

Danny75 · 21 Dec 2016 at 22:57

If you use Vulkan instead of OpenGL for Doom, the Afterburner/RivaTuner on-screen display won't work. Might as well try OpenGL see if it makes any difference elsewhere.

Which GPU and monitor are they?

xTommy92 · 22 Dec 2016 at 09:50

Danny75 said:
If you use Vulkan instead of OpenGL for Doom, the Afterburner/RivaTuner on-screen display won't work. Might as well try OpenGL see if it makes any difference elsewhere.

Which GPU and monitor are they?

Yeah tried both Open GL and Vulken and it's still the same, played BF1 aswell with the same settings and had bad stuttering on both RTSS and Nvidia Inspector FPS limiter. It limits and works and eliminates input lag but there is a silly amount of stuttering.

I have a MSI GT62VR 6RE with a GTX1070. Cheers

BinnsY · 22 Dec 2016 at 10:34

As xTommy92 says, try setting an FPS cap just lower than the monitors refresh rate (I have after burner set to cap at 136fps on my 144hz screen) as this way you are always inside the Gsync range and dont have issues with it turning off as you hit the cap.

Make sure you have vsync off in the game as well.

xTommy92 · 22 Dec 2016 at 10:38

BinnsY said:
As xTommy92 says, try setting an FPS cap just lower than the monitors refresh rate (I have after burner set to cap at 136fps on my 144hz screen) as this way you are always inside the Gsync range and dont have issues with it turning off as you hit the cap.

Make sure you have vsync off in the game as well.

Should I set all Vsync to off or adaptive, is there anything else I should turn on or off?

DRSEire · 22 Dec 2016 at 12:23

I use the same method as yourself with no problems.Riva locked to 95fp @ 100Hz.Vsync off with no stutter.Very strange.

Rroff · 22 Dec 2016 at 12:27

Are you talking about adaptive as an ingame setting or nVidia control panel? as if G-Sync is setup correctly adaptive shouldn't be an option in the nVidia control panel and in theory forcing it via something like nVidia inspector shouldn't do anything.

keyser · 22 Dec 2016 at 12:28

This was covered on blurbusters a while back. Also I can't find it but I think there is interpolation happening between mouse inputs per second and frame rate. tr;dr: for lowest input lag disable g-sync, use ulmb and have highest as possible mouse cpi (then lower it in the game).

xTommy92 · 22 Dec 2016 at 19:15

Rroff said:
Are you talking about adaptive as an ingame setting or nVidia control panel? as if G-Sync is setup correctly adaptive shouldn't be an option in the nVidia control panel and in theory forcing it via something like nVidia inspector shouldn't do anything.

Yeah, using it alongside Triple Buffering in Nvidia Inspector, I may just uninstall Inspector and use the other settings. I will try disabling Vsync and just limiting the FPS via RTSS but pretty sure I still had the stuttering last time. Quite annoying to be honest..

Would it be fine to set 1 frame lower than refresh?