I get

this message

every few minutes on Kubuntu (KDE), and the panels disappear.

It restarts itself automatically, so it's not a real problem, just an annoyance, but it is a big annoyance.

I've tried sudo apt install --reinstall plasmashell plasma-desktop, but that made no difference.

When I try a backtrace from the error message, it says it's unable to produce a useful backtrace.

  • How much RAM do you have? – Andrew Che Apr 5 '17 at 4:24
  • 4 gigs. I plan to upgrade when I have the means. Is that the problem? – Grund Apr 5 '17 at 5:09
  • I get the same issue constantly but my panels remain... – George Udosen Apr 5 '17 at 5:29
  • Look at this – George Udosen Apr 5 '17 at 5:41
  • Ubuntu version, KDE Version? – Bruni Apr 5 '17 at 9:10

Try installing the latest version of Plasma as a backport:

sudo apt-add-repository ppa:kubuntu-ppa/backports
sudo apt update && sudo apt full-upgrade -y
  • Has this helped? – Supernormal Jun 18 '19 at 18:07
  • 1
    @Supernormal This is how I solved the issue – Aidan Grimshaw Jun 24 '19 at 19:24
  • Seems to have worked for me too! – Supernormal Aug 6 '19 at 6:58

First, if you have any non-standard plasma widgets, I would try to remove those.

Then, I would kill plasmashell process and then run it from the command line to see the full debug output.

to get a useful backtrace you need to install the *-dev related packages.

about widgets: potentially removing your whole panel, or widgets on your background and recreating a new panel if you want. is an option.

finally, you could inspecting your local plasma related config files.

$ find .config/ | grep plasma

you could back them up and move them away between restarts. I would start by .config/plasma-org.kde.plasma.desktop-appletsrc

hope this helps

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