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I am! It only happens when I am on multiple monitors (clamshell opened or closed) and usually when I am in a video conference (zoom, hangouts, and G2meeting). Thought it was overheating.

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I had that same issue with multiple monitors a year or two ago. Tried everything, reformatting, different OS versions, etc.

Turns out it was one of my mini displayport -> hdmi adapters, replaced that and everything was fine.

I had the exact same issue with a 2017 13” MBP. Switching from one of those tiny usb c hubs to a full fledged dock with external power solved it.

Im seeming to have the same issue. 2019 MBP connecting through USB-C. However, I find the issue is less frequent (to non existent) after I switched to a USB-C to HDMI adapter.

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