high kernel task CPU usage when connecting to 2 monitors

I have two Macbook Pro, personal and company.

When I used my personal Macbook Pro 16'' 2019 connecting two dual monitors and watching streaming (Twitch, Youtube, etc.), my kernel task will go up to 1000% and taking away most of my CPU usage. While disconnecting dual monitor and watching in laptop's screen doesn't have the issue.

My company Macbook Pro 13'' 2019 having lower configuration when connecting to the same dual monitors doing exactly the same thing (i.e. watching streaming) doesn't give any issues. Why?

MacBook Pro

Posted on Sep 26, 2021 6:47 PM

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1 reply

Sep 27, 2021 4:09 PM in response to SailG

Hi SailG,

Thank you for participating in the Apple Support Communities. Here's a link to help View information about Mac processes in Activity Monitor. However, if you are noticing any other issues with high usage, check out these links:

If your Mac restarted because of a problem - Apple Support

If your Mac doesn't start up all the way - Apple Support

If your Mac restarts and a message appears - Apple Support

Use Apple Diagnostics on your Mac - Apple Support

If these links don't help, Contact - Official Apple Support.

Have a great day.

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high kernel task CPU usage when connecting to 2 monitors