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I upgraded from 19.10 to 20.04 a few weeks ago. Since then I am experiencing peaks of full CPU usage every 10 seconds. My Computer literally freezes for about a second. Here's a graph that shows what I mean: https://media-cdn.ubuntu-de.org/forum/attachments/52/34/9182809-auslastung_gnome-shell.png

Typing or scrollig sucks but watching videos is almost impossible.

I can see that gnome-shell is responsible for it, but I don't know what causes it. Any ideas?

Thanks!

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  • Use top to see exactly what is causing it. Can also see this link if gnome shell is the problem. askubuntu.com/questions/1036441/…
    – crip659
    Sep 4, 2020 at 18:25
  • Alt+F2 to open run dialogue and then press 'r' to restart gnome-shell. Hope it helps.
    – Arijit Chatterjee
    Sep 4, 2020 at 18:46
  • "top" result when CPU usage peaks: gnome-shell = 66,7 %
    – Seb1982
    Sep 4, 2020 at 18:50
  • restarting gnome-shell sadly didn't change anything.
    – Seb1982
    Sep 4, 2020 at 18:50

1 Answer 1

Reset to default
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I turned my Wi-fi connection off and strangely everything worked fine. Turns out that MEGAsync, a cloud software, somehow causes gnome-shell to use all of my CPU's capacity. I reported a bug. So this is not a "solution" to the problem, but a workaround.

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