Thank you David.
I'm sorry for my late reply : I only noticed that I sent my mail to
a mailing list after seeing the notification telling me a moderator
had to approve my post.
After a few research, I found out that kactivitymanagerd is
(hopefully) correctly started with my session.
$ ps aux | grep activityman
thomas 6031 0.0 0.1 553320 36956 ? Sl 10:56 0:01 /usr/
lib/x86_64-linux-gnu/libexec/kactivitymanager
However, I found where to configure history in the System Settings
application and discovered that the "Remember opened documents"
radio-button in the "Privacy" tab was set to "do not remember".
I have certainly been mislead by the word "documents".
Sorry for the bother.
Thanks.
Thomas.
