Game is fluid, but preview and game capture stuttering / lagging

[Ariakan972]

Hi!
I read a lot of post in the forum, and tried everything and I can't find whats wrong.
I have a good PC ( i7-13700k, 4070 RTX, 32Gb RAM, SSD...) and I have this problem :

Sometimes, randomly, for no apparent reason, OBS can't get me a fluid capture of my game.
The game is fluid, and suddenly I have choppy framerate for 2 minutes, and then eveything is fine, and it comes back...
I does it even when I'm not reccording / streaming, I can see it in the preview screen !

I disabled HAGS, use OBS as admin, put my game at the lowest possible, just to be sure my PC is not struggling (even if I know it's NOT), and I did manage to capture one of this moment. The game is 100% fluid (60fps), but you will see what it does to my recording / stream (Even when I'm not recording. I say it again before you tells me to not use Quicksync. I use it because I use NVENC for streaming, but I use my iGPU for recording and let my GPU with less things to do). My CPU / GPU usage are far from 100%.

I only have one scene, with only one "Capture Game". (it does the same with "Capture Display")

Here is the video (look at 30 sec): https://youtu.be/bsE_v-07nUU?t=30
Here is the log : https://obsproject.com/tools/analyzer?log_url=https://obsproject.com/logs/0ABWeCBPDxO6pVhF

Thank you for your help ! :)

 

[Ariakan972]

It seems to be an obscure problem not resolved... :(

Preview Stutter that appears in Streams/Recordings · Issue #4191 · obsproject/obs-studio

Platform Operating system and version: Windows 10 20H2 OBS Studio version: 26.1.1 Expected Behavior Display a non-stuttering image if the source is not stuttering and resources are not constrained....

github.com

obs frame obtaining randomly goes out of sync decays and then recovers ( no rendering encoding lag / no in game lag ) · Issue #6437 · obsproject/obs-studio

Operating System Info Windows 11 Other OS No response OBS Studio Version 27.2.4 OBS Studio Version (Other) No response OBS Studio Log URL https://obsproject.com/forum/attachments/2022-04-29-15-56-0...

github.com

Random fps drops

Hey guys, im having a weird problem of having my fps or frametime not acting normal on obs. Like once in like lets say 20-30 mins it feels like obs just decides to skip some frames or starts combining then not corretly. The output feels stuttery, yet theres no recording or encoding lag it...

obsproject.com

 

[rockbottom]

Can you check with this disabled? You log looks OK. I run my set-up 12900k/3090 with the GPU handling the recording & QuickSync the streaming.

12:18:57.041: Avira Security: enabled (AV)

 

[rockbottom]

Check the Nvida 3D settings.

Monitor Tech Fixed Refresh - If your monitor is set for G-Sync, disable it.
Texture Filter Quality: Quality, not HQ
V-Sync Fast
Triple Buffering On

 

[rockbottom]

My system was already kicking it but I enabled Resizable BAR last month. I've seen some uplift & it's very stable. Might be worth a shot, especially if the game you're playing is supported.

GeForce RTX 30 Series Performance Accelerates With Resizable BAR Support | GeForce News | NVIDIA

Support available now for all GeForce RTX 30 Series Founders Edition graphics cards, and select GeForce RTX 30 Series laptops.<br/>

www.nvidia.com

 

[Ariakan972]

Check the Nvida 3D settings.

Monitor Tech Fixed Refresh - If your monitor is set for G-Sync, disable it.
Texture Filter Quality: Quality, not HQ
V-Sync Fast
Triple Buffering On

Apart from the antivirus that I couldn't deactivate, nothing has changed, I still have the problems that appear randomly...
I tried with Streamlabs, and I have the same problem.
I will try later without the antivirus, although honestly I think it won't work.

Thank you for your response and advice!

 

[rockbottom]

To know for sure the antivirus must go.

Check your GPU with GPU-Z & make sure it's operating @ x16 4.0 & not x8 4.0 as this will cause stuttering with the 4070 as well..

 

[Ariakan972]

To know for sure the antivirus must go.

Check your GPU with GPU-Z & make sure it's operating @ x16 4.0 & not x8 4.0 as this will cause stuttering with the 4070 as well..

Yes, it works at x16 4.0.
I have no stuttering when I play games, it only happens in OBS. :(

 

[rockbottom]

Cool, ran across a few systems where a NVMe was installed in the wrong slot so it's always good to double check it.

Back to the Nvidia Control Panel, make sure Preferred Refresh Rate is set to Highest Available.

 

[rockbottom]

I double checked your log, other than using CBR for recording, OBS looks fine. Your system is causing the stuttering so changing settings in OBS will do nothing to improve the current situation.

FWIW, I don't think it's hardware issue, but more likely the anti-virus, GPU driver, or even a backround app running. It will require further troubleshooting to get to the bottom of it.

 

[Harold]

Display capture is going to offer worse performance than game capture.

But all of this, and what media player are you using to check your recordings?

 

[Ariakan972]

I double checked your log, other than using CBR for recording, OBS looks fine. Your system is causing the stuttering so changing settings in OBS will do nothing to improve the current situation.

FWIW, I don't think it's hardware issue, but more likely the anti-virus, GPU driver, or even a backround app running. It will require further troubleshooting to get to the bottom of it.

I unplugged all USB devices (not my keyboard/mouse and my xbox controller) and close all programs and kill all unnecessary processes, and I still have the problem.

I even bought an internal capture card (HD60 Pro) which captures my RTX 4070 directly and it's the same. On the preview (or in the recordings) I have jerks that appear frequently, but not on my games.

I put two different scenes: one with display capture, the other with game capture. When the jerks appear on one, I just have to switch to the other for it to disappear. And when it appears on the second, I go back to the first.

It seems to be a video frequency synchronization problem on the part of OBS, as indicated in the links I posted above... But apparently no one has any idea how to solve this problem.

I tried someone's idea of a capture card, but it failed.

Display capture is going to offer worse performance than game capture.

But all of this, and what media player are you using to check your recordings?

I use VLC, but that's not the playback is not the problem at all. :)

I use display capture, game capture and video capture device (for the HD60 Pro).

 

[rockbottom]

It's not OBS, if it was everybody would have stuttering.

The anti-virus needs to be disabled or removed as IT may be the cause & until it is I see no point moving forward with additional troubleshooting.

 

[rockbottom]

In the meantime, check the Startup tab in Task Manager. Disable everything on Startup that you don't need running. Another test you can try is to disable the iGPU in BIOS & see if that helps. While in there, make sure the 4070 is set as the Primary GPU.

 

[Ariakan972]

Hi! I completely uninstalled my antivirus just now and the problem is still there.

 

[rockbottom]

Disable the iGPU now & test again. What mobo did you have, I need the exact model & the BIOS version you're running. I want to check & see if there are any issues that a BIOS update may address.

 

[Ariakan972]

In the meantime, check the Startup tab in Task Manager. Disable everything on Startup that you don't need running. Another test you can try is to disable the iGPU in BIOS & see if that helps. While in there, make sure the 4070 is set as the Primary GPU.

I already did that (the startup things I disabled), but I'll double check later. I have to go, but I'll make a new test : record with obs AND another app at the same time (any recommandation?) to see if this is OBS or something else.

As we can read here, some developers managed to reproduce the bug, but I think they didn't found what it was...

 

[Ariakan972]

Disable the iGPU now & test again. What mobo did you have, I need the exact model & the BIOS version you're running. I want to check & see if there are any issues that a BIOS update may address.

This is my PC setup : https://fr.pcpartpicker.com/list/LbV678

I will make an BIOS update later, and disable iGPU, and I will make another test later. I'll let you know!

 

[rockbottom]

OBS & vMix are the only programs that I've ever tried & I stopped using vMix about 2 years ago so I really don't have any other app to recommend.

2+ year old thread, using v26 on a laptop? That doesn't apply here...

Thx, I'll take a look.

 

[rockbottom]

Not sure if the board is updated this far.

PRO Z790-P WIFI

PRO series motherboards tuned for better performance by 14 Duet Rail Power System, DDR5 memory with Memory Boost, Lightning Gen5 PCIe, Extended Heatsink, M.2 Shield Frozr, Wi-Fi 6E, 2.5G LAN, USB 3.2 Gen 2x2

us.msi.com

AMI BIOS 7E06vA2 2022-10-12 9.00 MB

• Description:
  - Update CPU Micro code. - Improve graphics card compatibility.