Jerky gameplay in DX12 titles with G-Sync laptop

Talk about NVIDIA G-SYNC, a variable refresh rate (VRR) technology. G-SYNC eliminates stutters, tearing, and reduces input lag. List of G-SYNC Monitors.
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vorob
Posts: 13
Joined: 05 Feb 2017, 18:06

Jerky gameplay in DX12 titles with G-Sync laptop

Post by vorob » 25 Apr 2020, 18:52

Basically my issue is simple. Almost every game that works in DX12 is jerky with G-Sync enabled. I've got Acer Triton 500 - i7 8750H / RTX 2080 MAX-Q with 144Hz 1080p panel. Any game in DX11 with G-Sync enabled play smooth. But not the DX12 titles. Just take a look at this side by side comparison in MW: https://youtu.be/-Pkz0Gb5ni0

Don't bother for windowed mode on the right, I have G-Sync enabled only for fullscreen applications so turning in windowed mode equals G-Sync off.

I honestly don't understand it. I thought G-Sync is only about varying display refresh rate. How instead of a super smooth image I'm starting getting totally opposite?

vorob
Posts: 13
Joined: 05 Feb 2017, 18:06

Re: Jerky gameplay in DX12 titles with G-Sync laptop

Post by vorob » 16 Apr 2021, 02:01

It's still a thing on my laptop :)

Shadow of the Tomb Raider, take a look:

https://youtu.be/e-i73-hynVU

When I'm in DX12 and G-Sync is ON I've got horrible stuttering. If I switch to DX11 everything is smooth. Also, no stuttering when G-Sync is OFF in DX12.

vorob
Posts: 13
Joined: 05 Feb 2017, 18:06

Re: Jerky gameplay in DX12 titles with G-Sync laptop

Post by vorob » 25 Oct 2021, 01:33

Okay, case solved. I switched from a balanced power plan to performance and it solved the stuttering issue. Took 2 years to understand this.

https://youtu.be/cxcAvgawnjg

vorob
Posts: 13
Joined: 05 Feb 2017, 18:06

Re: Jerky gameplay in DX12 titles with G-Sync laptop

Post by vorob » 26 Jun 2023, 04:57

The issue is back, in some way. Now i've got another laptop with G-Sync screen. It's Redmi G Pro 2020 with i9-12900h and geforce 3070ti and 240hz panel. The best possible example was captures in BF2042, take a look:

https://youtu.be/0UV4CN6Ml1k

G-Sync is set to work in fullscreen only so when BF2042 is in fullscreen i've got strange hiccups, and if i switch to windowed mode (where g-sync is not working) everything is smooth.

I've noticed same stuff in Diablo 4, but hiccups happens less often, but still they are absent in windowed mode.

bumbeen
Posts: 84
Joined: 25 Apr 2023, 14:35

Re: Jerky gameplay in DX12 titles with G-Sync laptop

Post by bumbeen » 27 Jun 2023, 04:53

maybe it's doing copy through igpu? what does gpu util show for the integrated when running full screen?

Baifsta
Posts: 1
Joined: 29 Jun 2023, 01:46

Re: Jerky gameplay in DX12 titles with G-Sync laptop

Post by Baifsta » 29 Jun 2023, 01:48

I think it's copying over igpu.backrooms

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