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I am currently using the KDE Plasma Desktop Environment and a few seconds after logging in the plasmashell process would end up using more than 80% of the CPU which sometimes leads to lag and high fan speed.

Even after killing and starting the process, it would sometimes lower the usage for a while but in most cases there would be no changes.

This does not occur with other desktop environments but I would prefer to stick with KDE Plasma.

I am currently using an:

  • Intel Inspiron 5758
  • 8 GB RAM
  • Intel Core i7-5500U CPU @ 2.40 GHz
  • GPU: Intel HD Graphics 5500
  • Ubuntu 17.10
  • Kernel: 4.13.0-21
  • KDE Plasma 5.9

I have tried:

  • Restarting plasmashell
  • Removing all widgets/applets
  • Disabling ipv6 network capabilities

Is there any solutions for this?

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There are many bug reports about plasmashell using high CPU, most of the times the reason for it is some bugged/stuck widget or applet try removing/disabling them. However it can be caused by other things, its pretty hard to say what cause your problem without more information and investigation.

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  • I tried removing all widgets/applets I had but no difference. What sort of information would you be referring to? – Omari Celestine Dec 31 '17 at 1:11
  • Distribution, kernel version, plasma version, did you try anything to fix it and so on. – AsenM Dec 31 '17 at 1:21
  • also CPU brand/model and GPU brand/model. If either are underpowered for Plasma, that's going to contribute a lot to CPU usage. A shortage of RAM could contribute too. – cas Dec 31 '17 at 1:39
  • @AsenM I have included additional information in my question. – Omari Celestine Dec 31 '17 at 2:08

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