Interval stutter / jitter / duplicated frames bug - workarounds

TexelGuy

New Member
3. Launch a game or a GPU benchmarking application that maxes out your GPU at 100% usage, keep it in windowed mode so you can alt-tab to other applications while it runs in the background. (For steps 2-3, it's okay to set your monitor to higher refresh rates or disable VSync if your GPU isn't maxed out at 60Hz)
Oops, I meant for steps 3-4.
 

n8lbv

Member
Thank for your reply and all of your time!
At the moment I am testing with an Intel B580 GPU So I will not be able to try all of this until I switch back to an NVidia system.
I also gather it doesn't work.
If you can find my recent post under Windows Help you will also see that people are very unwilling to admit any issues or help.
And completely ignore any of my logical questions.
Is what it is and broken.
:)
 

rockbottom

Active Member
I've proven over & over that OBS does not cause stuttering issues & have been running stutter free on many systems for over 8 years. If it's stuttering, look somewhere else.

Most of the time, the cause is:

Bad Settings/Configuration/Routing
Rig Issues
Bad Sources
Rendering lag
 
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TexelGuy

New Member
At the moment I am testing with an Intel B580 GPU So I will not be able to try all of this until I switch back to an NVidia system.
You can still try steps 7-9 without the nvidia-smi command. However, you have to make sure your GPU's clock speeds are stable and not fluctuating while displayhz.com is open, and also that it stays at that same clock speed the whole time when you're recording.

If your GPU's clock speed was stable at 2600 MHz (for example) while measuring with displayhz, then you need it to also stay at 2600 MHz while recording your videos. Fluctuating GPU clock speeds affect the result you get from displayhz, and a stable clock speed is ideal.
 

TexelGuy

New Member
I've proven over & over that OBS does not cause stuttering issues & have been running stutter free on many systems for over 8 years. If it's stuttering, look somewhere else.
I'd love to see a 1-2 hour uncut recording from your system, captured at 60 fps at 60Hz w/ VSync on a GPU (not capture card) with an RTSS overlay enabled with framerate and frametimes visible in the recording.
 

rockbottom

Active Member
Tex, I can record for DAYS without any stuttering. But, you won't see me using a overlay on any of my encodes....

 
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TexelGuy

New Member
Tex, I can record for DAYS without any stuttering. But, you won't see me using a overlay on any of my encodes....
That information about overlays isn't true since RTSS 7.3.2. It added a new setting that fixes any hooking issues when using OBS's game capture:

Btw, overlay conflicts don't matter if you're using display capture, since OBS doesn't hook into the game in that mode.

Either way, I'd still like to see a recording that's an hour or two long from your system, with or without overlays. An overlay with frametimes would just make it easier to know if your game stuttered or if it was OBS.

The interval stuttering people are talking about here can be easily identifiable a lot of the time, since it almost looks like OBS starts temporarily capturing at 30 fps instead of 60 fps when the stuttering kicks in. It's not a full-fledged "freeze" if that's what you're thinking. There will also be zero dropped frames or any other issues according to OBS when this happens.
 

TexelGuy

New Member
Here's a little test I did the other day. The source file I used & my recording can be downloaded. Try the source video as your test, it's only a minute.
A 1 minute test will never reliably reproduce this bug unless you record at just the right time through sheer luck (or bad luck). Depending on your monitor's true refresh rate, it can take at least an hour to manifest. The longer it takes to happen, the longer the stutters are sustained. Some people can see it happen every few minutes at a consistent interval.

Logs won't help, the OP of this thread mentioned this as well, and I've gone through the logs many times myself way before I found this post. The stutters purely exist in the video file itself, OBS does not notice anything. I don't actually need any help, though. I found a workaround, which I posted here already.
 

rockbottom

Active Member
Depends, did you try it? Can your system record that without any skips when viewing frame by frame?

I only run 30 , 60, 120, 240 or 360HZ

Errors add up over time, minimize/eliminate the errors & the stutters will cease. Timing is everything.
 

OmegaMalkior

New Member
I've proven over & over that OBS does not cause stuttering issues
I'll gladly cast doubt over this statement when I've done virtually everything possible with my setup to get OBS to be smooth in the Projector/Program Preview but it *always* has some sort of stutter whether it be interval or any name that it has. Meanwhile in Elgato Studio the preview is downright flawless without doing anything. The only reason why I don't main Elgato Studio for this is cuz it has gray fills for ultrawides on 16:9 content which don't look that good on OLEDs tbh. But if I'm after a smooth experience I never go for OBS, as much as I would want to.
 
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