![]() When I reset the main display’s resolution to default the MPB is back to normal and works just fine. Took a lot of time digging around the internet until ironically I stumble upon a Youtube video showing similar issues referring that the culprit is HiDPI scaling. And any type of streaming especially Youtube will stutter having trouble loading videos smoothly. If I set any type of scaling within system preferences Kernel_task cpu usage will shoot up to 500% within minutes. And what caused the problem for my system is simply Apple’s HiDPI scaling. One is connected directly to the MBP and the other one is connected as a pass-through a CalDigit TS3+ dock and with Airplay on the Apple TV. ![]() I have a 2017 MBP 15 inch hooked up to 2 monitors via USB. I was experiencing extremely HIGH Kernel_task CPU usage whenever I was trying to stream on Youtube.
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