Leslie Turriff wrote:

> Okay. �I didn't know that the same settings appear in two different files.
> (Why is that?)
> 

what do you mean it appears in two different files?

> I did these steps:
> 1)������rm ~/.trinity/share/apps/kate
here in sessions are the session settings stored
> 2)������rm ~/.trinity/share/config/kate_*
> 3)������rm ~/.trinity/share/config/katerc
the two above are not really relevant - are they?
> 4)������opened Kate, which asked to select a session; chose Default
> Session 5)������Window -> Tool Views -> Hide Documents
> 6)������Window -> Tool Views -> Hide Sidebars
This should not have to do anything with the documents view. It hides the
whole of the side bar ... well if you prefer, be it
> 7)������closed Kate
> 8)������reopened Kate; Success!
> 
cool

> So apparently one has to remove at least the first two configuration items
> (not sure about katerc) to ensure that the tool views settings are
> properly accepted. �I see now that Kate did not recreate
> ~/.trinity/share/config/kate_*, and only default.session exists in
> ~/.trinity/share/apps/kate/sessions.
> 

in config ( ~/.trinity/share/config/ ) are the configuration files related
to the application.
in app/kate/sessions/ are the files related to the sessions.

It might have been a setting in your files that was moved to the session
settings and thus was overwriting the session setting, while you were not
able to change it, because the version we use now writes to the session
setting ... just a theory.

regards