zoom causing kernel_task to spike - cpu usage off the chart

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zoom causing kernel_task to spike - cpu usage off the chart

I was able to resolve this issue just by unplugging from my extra monitor - went back to normal. As soon as I plug it back in, it spikes again

MacBook Pro 15″, macOS 11.5

Posted on Aug 16, 2021 1:02 PM

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Answer 1

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Tesserax

Level 10

151,971 points

Aug 16, 2021 1:13 PM in response to adtz

Appears to be a compatibility issue with the Zoom app running on macOS Big Sur. Have you contacted the Zoom developers yet to see if they have a solution or updated version of their app specifically for you version of macOS?

Ref: How to contact an app developer - Apple Support

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Answer 2

Aug 16, 2021 1:27 PM in response to adtz

That's strange. I have taught all the school year online using Zoom, with an external display attached to my MBP, with no issues.

Maybe there is something else. Is Zoom fully up to date? Do you have some cleaners, or antivirus?

Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

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zoom causing kernel_task to spike - cpu usage off the chart

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