Horizontal lag lines on playback

New Here ,
Jul 19, 2021 Jul 19, 2021

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Hi everyone, 

I have a well spec'd PC running a ryzen 5900x and a 2070 super along with 48gb of RAM.

Newest version of windows with all updated drivers etc.

When inputing frresh footage with no added effects I am getting glitchy horizontal lag lines and I can't seem to find a viable solution for it.

I have tried to capture it but it doesnt show on an image, only on playback.

Can anyone help?

Thank you 

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Editing, Error or problem, Hardware or GPU, Performance

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correct answers 1 Correct Answer

Adobe Community Professional , Jul 21, 2021 Jul 21, 2021
Close Premiere Pro and go to the Nvidia Control Panel and scroll down until you see Vertical sync. Set it to On and click Apply. Rock on from there! 

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Adobe Employee ,
Jul 19, 2021 Jul 19, 2021

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Hi Olivia,

Sorry for the frustration. What kind of source footage are you using? Is is from a camera or from a mobile phone or some other H.264 source?

 

Thanks,
Kevin

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New Here ,
Jul 19, 2021 Jul 19, 2021

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It's MP4/Mov H.264 footage from a sony A7iii

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Adobe Employee ,
Jul 19, 2021 Jul 19, 2021

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Hi Olivia!

Sorry about that. Which device did you use to capture footage? Are they screen recorded footage?

 

Let us know.

Thanks,

Kartika

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Adobe Community Professional ,
Jul 19, 2021 Jul 19, 2021

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It would be helpful to see the glitch that you're talking about if possible. It sounds like it could be interlaced.

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New Here ,
Jul 19, 2021 Jul 19, 2021

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This is just a recording from my phone, the clip plays fine outside of PP.

Thank you 

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Adobe Employee ,
Jul 21, 2021 Jul 21, 2021

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Thanks for sharing the screen recording, Olivia. It helps. We'd need more details on the footage (frame rate, frame size) and your system specifications (CPU, GPU, RAM, OS) to troubleshoot the issue properly.

You could try clearing the media cache and see if it beings any change. Here's how: https://community.adobe.com/t5/premiere-pro/faq-how-to-clear-your-media-cache-in-30-seconds-in-premi...

Let us know, we're here to help.

 

Thanks,

Nishu

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Adobe Community Professional ,
Jul 21, 2021 Jul 21, 2021

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wait, you  "It's MP4/Mov H.264 footage from a sony A7iii" now you say it's from your phone....  If it is from a smartphone, the problem may be that it's got a variable frame rate.


use mediainfo to determine whether your source is variable or constant frame rate

https://mediaarea.net/en/MediaInfo/Download

if it's variable use handbrake to convert to constant frame rate

https://handbrake.fr
and here's a tutorial on how to use handbrake

https://www.youtube.com/watch?time_continue=34&v=xlvxgVREX-Y

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New Here ,
Jul 21, 2021 Jul 21, 2021

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Sorry if it was unclear, the source footage was from the Sony but to show the problem I had record my screen from my phone.

Thank you 

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Adobe Community Professional ,
Jul 21, 2021 Jul 21, 2021

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Close Premiere Pro and go to the Nvidia Control Panel and scroll down until you see Vertical sync. Set it to On and click Apply. Rock on from there! 🙂

 

Averdahl_0-1626888905540.png

 

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New Here ,
Jul 21, 2021 Jul 21, 2021

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Thank you so much, this worked!

 

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Adobe Community Professional ,
Jul 21, 2021 Jul 21, 2021

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Thank you for reporting back! 🙂

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