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I'm a completely new user. I installed Ubuntu 20.04.1 LTS on my Surface Book 2 and I've been having a couple of problems. The most annoying one is that it is extremely slow. CPU 1 is AT LEAST at 80% usage at all times. System monitor screenshot

I've tried to identify the problem looking up other questions but I can't solve it.

grep . -r /sys/firmware/acpi/interrupts yields no unusually high values (the Max value is 43).

kworker/0:2+kacpi_notify is the top process at 85%~ kworker/u16:0+kacpi_hotplug is the second at 20%~

How else can I go about this?

Here's a screenshot of my other specs if it helps. Specs screenshot

agustinvaca
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  • Weren't you able to find out which process is using the CPU? You can go to the System Monitor's Process tab and sort by % CPU column or use the top command from a terminal. – FedKad Oct 27 '20 at 17:28
  • Yes! kworker/0:2+kacpi_notify is the top process at 85%~ kworker/u16:0+kacpi_hotplug is the second at 20%~. Not sure if I can kill these processes? – agustinvaca Oct 27 '20 at 18:04
  • You can [edit] and change your question to mention these processes. You can look also at this old question: https://askubuntu.com/questions/33640/ – FedKad Oct 27 '20 at 18:13
  • Ok what I got from that question is that I should basically update my kernel until the problem is gone. I updated to kernel 5.9.1 and now it's even worse :( – agustinvaca Oct 28 '20 at 16:04

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