High CPU% Kernal Task when 2nd monitor is plugged in via USB-C Port

When I am using a 2nd monitor with my mac book pro the last week or so the CPU get's overloaded once I use the montior for a few hours, CPU heats up and then whole system is slowed down. Goes away as soon as I unplug the monitor for the USB C port. Tried both sides and all the ports. Same result.

Any suggestions? I've been using the monitor for months without issue.

MacBook Pro 16″

Posted on Nov 13, 2023 11:56 AM

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1 reply

Brad Jerger Author

Level 1

5 points

Nov 13, 2023 1:17 PM in response to Brad Jerger

I'm using a Hiearcool USB C Hub, USB C Ethernet Adapter, 8in1 USB C Docking Station with 4K 60Hz HDMI, guessing maybe it's on it's way out.

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High CPU% Kernal Task when 2nd monitor is plugged in via USB-C Port

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