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Weird video playback glitching issue

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Hi @MaLd0n,

I am having these weird glitches with video playback, no matter whether I am playing a video in YouTube, or Quicktime, or Quicklook, or VLC, anything. The video develops these blocky artifacts randomly and pixelates badly for a few seconds every now and then. I have attached a zip of a screenshot attached to show what I mean. This has been happening across different MacOS versions (High Sierra, Catalina, Monterey, Ventura) and across different OC versions. I recently updated to OC 0.9.4, hoping things would change, but no such luck...

Problem Reporting files are uploaded here, since the zip file was too large to attach here. Please see what the matter could be, and if there is a workaround.

Screenshot 2023-06-29 at 3.14.47 PM.zip

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U can try with iMacPro or MacPro7 smbios with igpu disabled?


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So I finally managed to solve it. I was just trying different options in BIOS to eke out the last remaining bit of performance out of my 9900K processor, and I set 4 out of the 8 cores to run at 5.1 GHz. That seems to have solved the issue. Don't ask me how! YouTube now plays without any glitch, rendered videos play without any issues, and all is good.

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