two days ago I switched from 16.04 to 18.04. I did a complete reinstallation. I installed unity via
$ sudo apt-get install ubuntu-unity-desktop
As display manager I'm using 'lightdm'.
Now I'm facing the problem that Ubuntu crashes randomly while using the Unity Desktop. First the side bar and the menu bar are disappearing and then 2 seconds later the login screen opens where I have to enter my password again. The problem does not occur if I use gnome.
Things I already tried:
- Deinstalling unity tweak tool, because I guessed that this packages somehow overlaps with the new tweak tool which is already included in the plain installation
What could I do next to fix this behaviour?