ericfjosne

Thanks for your reply. Aside from the high CPU usage that can be observed in the activity monitor, how were you able to confirm that interrupt gpe6f was the root...

@irfanhutomo2 Thanks for the link. I have just tested your EFI, but I believe my screen specs (4K) differs from the intended one, causing a black screen to be shown...

@sintaxx @irfanhutomo2 I have tried the EFI 0.8.4 on the link that was provided. As per my previous message: the built-in screen is totally black. However, connecting an external screen...

Going a bit further: I wanted to double check the hypothesis behind gpe6F ACPI interrupt being the actual cause of this high kernel_task usage. I believe it might have been...

> > I believe it might have been a valid one a few months ago (?), but I just tested a fresh Ubuntu install, using the laptop updated with the...

Moving further, I have now successfully confirmed it is thunderbolt related. After enabling all debug for ACPI, following the [guide and recommendations for debugging](https://dortania.github.io/OpenCore-Install-Guide/troubleshooting/kernel-debugging.html), I get the following kernel logs...