Vysnc, Gsync, HDMI, Display port and frame hitching question

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Wayfall

Wayfall

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Dec 27, 2013
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Specs:
CPU: Intel Broadwell-E i7 6800K
Cooler: Be Quiet! Dark Rock 3
MOBO: Asus X99 AII
GPU: MSI GTX 1080 8GB X Edition
RAM: Corsair Vengeance LPX 2666MHZ Dual Channel 4x4GB 16GB kit
PSU: EVGA SuperNova G3 850W 80 Plus Gold
SDD: Samsung 850 EVO 250GB
HDD x2: 1TB Western Caviar Digital
OS: Windows 10 Home Premium 64Bit
Monitor: Dell S2716DG 27" 1440p Nvidia GSync144Hz

Hi

Ever since i got my GTX 1080 and on the same day got a Gsync monitor, plugged in the display port cable and started using Gysnc, i got frame hitching in pretty much all my games. I think Dishonored and Shadow of Morder were the only ones not to frame hitch.

I literally tried every fix on the net and contacted Nvidia numerous times. I have had the build for a while now.

Finally i decided to unplug the Display Port cable and use HDMI (which can only got up to 60hz and no Gsync). I had tried capping my HZ down to 60fps with the Display Port but the moment i loaded up a game everything is uncapped again.

I played Rising Storm 2 tons on 144hz with Gsync and i could play at 80-140fps on high settings but i got lots of frame hitching mostly when i was running or turning my camera quick.

With Gsync i enabled it by turning it on via the gysnc tab on the left of Nvidia control panel. I had set it as my frame technology in 3D settings. I turned vysnc on as otherwise it does't work, it tears if that settings is turned off.

I got this frame hitching with Witcher 3, BF1, Far cry 1, all Valve games and Fallout 4 to name a few,

With the HDMI and at 60hz with Vsync im not getting stutter/hitching....

What is going on?
 
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usr1235

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Aug 21, 2015
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This is always kinda confusing to me because there are so many variables involved. I have a similar build (same monitor! So at least you know it should work), my settings, which seem to work correctly, are GSync on in the NVIDIA Control Panel. It sounds like you did this, but just to check, there are two places, one is the Set Up G-SYNC section, where you make sure it's enabled (oh, and make sure it's enabled for whatever mode you're using, if it's enabled for full screen and you're using windowed, that would be a problem). The other is in Manage 3D settings where I have it set on global settings. Maybe also check to make sure it didn't somehow get disabled for specific games in the Program Settings. Like you, I have vertical sync on in control panel, but also make sure you turn it off from inside the game, in its options. The game's VSync may not play nice with NVIDIA's VSync, and you don't necessarily know how any given game has implemented it. Triple Buffering is off in the control panel. I have power management on optimal power, I'm not sure if that's the default if I put it on there on purpose, maybe one thing you could try is max performance, the issue could be your gpu trying to aggressively downclock but then suddenly need to speed up again and that makes it hitch. I'd set the program settings to max performance because if you do it globally I think you'll run real hot just browsing, but I'm not sure.

The fact that it's smooth at 60 fps seems to point to the issue being G-Sync not working, since your machine probably just pegs the game at a steady 60 fps. The whole point of G-Sync is that we can't play at a steady 144 but it keeps things smooth, so hopefully you figure out the problem!

Edit: What were you using to limit the frames? I've never messed with that but in theory using like MSI Afterburner to set your max framerate at 60 should have worked (although that's not a desirable solution, it should still be the same effect as switching to the HDMI port).
 
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usr1235

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Aug 21, 2015
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Yes. Also in the first item in the control panel (Adjust image settings with preview) make sure you've selected "Use the advanced 3D image settings," not "Let the 3D application decide"

The games are installed on the SSD or the HDD? If they're on the HDD definitely try installing them on the SSD. The other problem is that your definition of hitch might be different from mine. If the game's engine stutters, G-Sync can't help with that. Even with powerful hardware, games aren't perfectly designed, and you're playing a lot of games that are just old enough they probably weren't tested at higher framerates (hm, but BF1...). Like you mentioned Fallout 4, didn't that have a physics bug tied to higher framerates?

In that case limiting the framerate may be the best option, and I think MSI Afterburner (which uses Rivatuner) should work. Maybe you don't need to do 60, but like 80, for example. It's hard to say since I can't see exactly what's happening, I wouldn't expect it to be distractingly bad in any case so it could still be something else.
 
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Wayfall

Wayfall

Splendid
Dec 27, 2013
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Ye i have tried all you have recommended but i still get horrible random frame hitching in Killiing Floor 2, Rising Storm 2 and my other games. Sometime i see a random hitch on the desktop too.... this is really annoying me. Its been plaguing me for so long.

I thought the Creators Windows 10 update may help but it just made it worse.

Also no matter what driver i use its still the same.

I even put my GPU is the second PCIE slot but no change in performance.
 
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Wayfall

Wayfall

Splendid
Dec 27, 2013
3,569
12
24,115
OMG OMG OMG i fixed it!!!:
http://www.pcgamer.com/use-ultimate-windows-tweaker-to-deal-with-windows-10s-privacy-settings/

It was all windows 10's privacy hogging my resources. I can finally play Dishonored and all my other games with out stutter!!! omg friggin god this is amazing
 
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