FPS & Variable refresh rate unable to sync in Dota 2

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jorimt
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Joined: 04 Nov 2016, 10:44
Location: USA

Re: FPS & Variable refresh rate unable to sync in Dota 2

Post by jorimt » 15 Mar 2023, 12:48

bilalirfanpk wrote:
15 Mar 2023, 12:16
Yes I did try that and the stutter is terrible and unplayable. Not sure why despite VRR is same as FPS and static as well. Here's how it looks. :D https://imgur.com/a/H3DpR9R?s=wa
That doesn't look VRR-related, it looks like the gametime is hard stalling for some reason.

It would be much easier to help users troubleshoot if I had hands-on, since so much goes unsaid and unseen in this communication format, but that's obviously impractical for a variety of reasons.

Have you already read and tried my settings in this post, just at 165Hz 75 FPS 1080p?
viewtopic.php?f=2&t=11425&start=30#p90386

Also, do you know how to run an offline replay of a match to rule out any netcode/ISP issues? Because that would be better for testing.

To be clear, all properly configured VRR does at 75 FPS 165Hz, is refresh the display 75 times per second while preventing tearing, nothing more, so anything you're seeing there would be directly caused from the system, not display-side (unless your monitor is frame skipping).
(jorimt: /jor-uhm-tee/)
Author: Blur Busters "G-SYNC 101" Series

Displays: ASUS PG27AQN, LG 48CX VR: Beyond, Quest 3, Reverb G2, Index OS: Windows 11 Pro Case: Fractal Design Torrent PSU: Seasonic PRIME TX-1000 MB: ASUS Z790 Hero CPU: Intel i9-13900k w/Noctua NH-U12A GPU: GIGABYTE RTX 4090 GAMING OC RAM: 32GB G.SKILL Trident Z5 DDR5 6400MHz CL32 SSDs: 2TB WD_BLACK SN850 (OS), 4TB WD_BLACK SN850X (Games) Keyboards: Wooting 60HE, Logitech G915 TKL Mice: Razer Viper Mini SE, Razer Viper 8kHz Sound: Creative Sound Blaster Katana V2 (speakers/amp/DAC), AFUL Performer 8 (IEMs)

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jorimt
Posts: 2481
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Location: USA

Re: FPS & Variable refresh rate unable to sync in Dota 2

Post by jorimt » 15 Mar 2023, 13:10

bilalirfanpk wrote:
15 Mar 2023, 12:16
Also, I've now moved this thread to general since 1) G-SYNC Compatible is still considered "G-SYNC," not "FreeSync," and 2) your issue appears to be game (not VRR) specific.
(jorimt: /jor-uhm-tee/)
Author: Blur Busters "G-SYNC 101" Series

Displays: ASUS PG27AQN, LG 48CX VR: Beyond, Quest 3, Reverb G2, Index OS: Windows 11 Pro Case: Fractal Design Torrent PSU: Seasonic PRIME TX-1000 MB: ASUS Z790 Hero CPU: Intel i9-13900k w/Noctua NH-U12A GPU: GIGABYTE RTX 4090 GAMING OC RAM: 32GB G.SKILL Trident Z5 DDR5 6400MHz CL32 SSDs: 2TB WD_BLACK SN850 (OS), 4TB WD_BLACK SN850X (Games) Keyboards: Wooting 60HE, Logitech G915 TKL Mice: Razer Viper Mini SE, Razer Viper 8kHz Sound: Creative Sound Blaster Katana V2 (speakers/amp/DAC), AFUL Performer 8 (IEMs)

bilalirfanpk
Posts: 19
Joined: 14 Feb 2023, 12:18

Re: FPS & Variable refresh rate unable to sync in Dota 2

Post by bilalirfanpk » 20 Mar 2023, 13:05

jorimt wrote:
15 Mar 2023, 12:48
bilalirfanpk wrote:
15 Mar 2023, 12:16
Yes I did try that and the stutter is terrible and unplayable. Not sure why despite VRR is same as FPS and static as well. Here's how it looks. :D https://imgur.com/a/H3DpR9R?s=wa
That doesn't look VRR-related, it looks like the gametime is hard stalling for some reason.

It would be much easier to help users troubleshoot if I had hands-on, since so much goes unsaid and unseen in this communication format, but that's obviously impractical for a variety of reasons.

Have you already read and tried my settings in this post, just at 165Hz 75 FPS 1080p?
viewtopic.php?f=2&t=11425&start=30#p90386

Also, do you know how to run an offline replay of a match to rule out any netcode/ISP issues? Because that would be better for testing.

To be clear, all properly configured VRR does at 75 FPS 165Hz, is refresh the display 75 times per second while preventing tearing, nothing more, so anything you're seeing there would be directly caused from the system, not display-side (unless your monitor is frame skipping).
Apologies for late reply. I moved on with my life with it hahah. Anyhow, it could be the game engine not coping up and not the VRR. And yes I tried setting 75fps cap with 165hz on 1080p and I know the science behind it but I have no idea why its micro stuttering all along. Could be game not made for it. Constant judders with above settings. It seems to work best only when FPS is exactly matched with max refresh rate set be it 165, 144, 120, 100 or 75hz.

bilalirfanpk
Posts: 19
Joined: 14 Feb 2023, 12:18

Re: FPS & Variable refresh rate unable to sync in Dota 2

Post by bilalirfanpk » 20 Mar 2023, 13:42

jorimt wrote:
15 Mar 2023, 12:48

Have you already read and tried my settings in this post, just at 165Hz 75 FPS 1080p?
viewtopic.php?f=2&t=11425&start=30#p90386
Just tried it again now, no tearing but gameplay isnt smooth. I wont call it stutters but maybe juddering. Characters kinda vibrate or shake when they moving so not really sure why its happening in first place. 75fps are constant, no drop. I checked for frame-skipping, its fine too.
jorimt wrote:
15 Mar 2023, 12:48
Also, do you know how to run an offline replay of a match to rule out any netcode/ISP issues? Because that would be better for testing.
Yes will download some demo and share results offline.

yamaci1775
Posts: 14
Joined: 27 Jan 2019, 02:29

Re: FPS & Variable refresh rate unable to sync in Dota 2

Post by yamaci1775 » 21 Feb 2024, 11:05

I'm having a similar issue in ratchet clank. animations and camera appeared juddery and stuttery on my vrr screen despite frametime graph looked solid. Thankfully the most recent RTSS version can now show refresh rate so I gave it a try. Whenever screen gets stuttery refresh rate stops syncing and acts on its own weirdly. (Mind you, this doesn't appear on video because it does not happen on software. It happens on my end screen which I don't have proper tools to capture it. But I can confirm whenever refresh rate breaks from 60 hz, game feels stuttery on the actual screen, same for cutscenes and more)

I disabled HAGS and voila. Game now perfectly syncs, I can move camera erratically all I want and it will sync 30 FPS cap to 60 hz properly. It only slightly varies from that target.

Idk what is going on around here. I'm on a rtx 3070 with most recent nvidia driver and windows 11 build. Maybe it has to do with DirectStorage and HAGS clashing ? Maybe HAGS clashes with the idea of frame caps? Just leaving these here in case some NVIDIA engineer comes upon it and examines it. I've had enough with driver feedbacks as they never return to you for anything so I don't even know if anyone looks into those reports anymore.

https://www.youtube.com/watch?v=uB2h1wbETz4
https://www.youtube.com/watch?v=Ggy9nTSMr28


I did the tests with NVIDIA's own framerate limiter since it is optimized for DLSS3 frame limiting purposes so technically it should not clash or create problems with HAGS.

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