Hi,
I doubt you will be able to run plasmshell from tty. I would need an
X Server
running. But will see what happens.
I think we have quite some misunderstandings
ongoing here. I am not
talking about a "tty". I am talking about a console e.g. an running
instance of "konsole". Actually it doesn't matter where you restart
plasmashell. My point is that this situation is likely recoverable
without restarting the system and lossing content of still open
applications.