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ph__1990 avatar Ubuntu

Ubuntu Studio (sometimes) i7 core stuck at 100%

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ph__1990

Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal

Hello. I run Ubuntu Studio in an Acer Aspire V Slim which I upgraded with SSD and a Polaris_CX motherboard. The board came along with 4gb onboard ram and an Intel i7 QuadCore. Sometimes when I'm using the laptop for any task (or none), usually while the very first moments of startup, the cores graphic monitor shows one of the core stuck on 100% and it overheats until crash, even if I'm not processing anything, and only one of them, always the same one (fourth).

Firstly I thought that was Jack problem, but it isn't (happened also when Jack is off) After some reading here and other forums, I found out the process responsible for the stuck, using

$ ps auxh | awk -v max=0 '{if($3>max){CPU=$3; PID=$2; NAME=$11; max=$3}} END{printf "%5s %6d %s\n",CPU,PID,NAME}'

output

[irq/35-nvkm]

Sometimes I can kill it, but other times I'm not able, even using $ htop, than I have to force reboot by button

Researches related to "[irq/35-nvkm]" come with kernel problems, but my linux knowledge didn't allow me to recognize solutions.

I would like to find the root of the problem to solve it. Any ideas? Thanks in advance.

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