Hi Christoph, I recently came across a machine that was experiencing a very very similar issue as the one you described. This was running Ubuntu Trusty, so no systemd involved at all.
It turned out that what was happening was that every time a file was opened or closed, the recently-used.xbel file was read by cinnamon and for some reason that caused cinnamon to freeze. Unfortunately, I didn't keep a copy of the offending recently-used.xbel file, so it's hard to know WHAT is there that is causing this. The next time this happens to you, please do the following: $ mkdir -p ~/.config/gtk-3.0 $ echo -e "[Settings]\ngtk-recent-files-max-age=0\ngtk-recent-files-limit=0" > ~/.config/gtk-3.0/settings.ini $ cp ~/.local/share/recently-used.xbel /tmp/ $ rm ~/.local/share/recently-used.xbel Then log out and log in. If this gets rid of the symptom, then we know it's the same problem. If that's the case, please look at the copied file and check if there's anything private there and if there's not, attach it to the bug so that we can try to figure out what recently used things can cause this. Thanks! Marga -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org