How to workaround frequently crash the plasma shell, Kubuntu 16.04 on VirtualBox (5.0.30).

I constantly got a plasmashell crash with segmentation fault 11, Kubuntu 16.04 on VirtualBox (5.0.30).

screenshot: Plasmashell crash

The dialog entitled ``Plasma'' shows the next information, too (Developer Information).

  Application: Plasma (plasmashell), signal: Segmentation fault
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  [Current thread is 1 (Thread 0x2afa1a0a30c0 (LWP 1913))]
This looked random, I found a hint at https://bugs.kde.org/show_bug.cgi?id=363371 .
A summary is also at Frequently crash the plasmashell .

Following this hint, this is caused by the dynamic window thumbnail creation. Here is the working example of show informational Tips.

show informational Tips working example
But in my environment, I can crash when I make this informational Tips several times. Here is a workaround: disable show informational Tips. To do this, Use System settings. Workspace -- Desktop Behavior -- Workspace, and off the show informational Tips. You can see the screenshot of this window below.

Plasma setting: Off the show informational tips


Doug Lung said...

Thanks! This had been bugging me for some time and it is the only solution that made sense and worked!

Michael Heß said...

Finally a solution to this!
Thanks a lot for sharing.