https://bugs.kde.org/show_bug.cgi?id=402972
--- Comment #2 from David Edmundson <k...@davidedmundson.co.uk> --- >write(2, "calligra.lib.text: received a QTextDocument undoCommand signal\n", >63) = 63 We know from that trace that we're writing a tonne to stderr It might be in: ~/.local/share/sddm/xorg-session.log Failing that can you kill all thumbnail.so and run: KDE_FORK_SLAVES=yes plasmashell --replace you should see output to stderr -- You are receiving this mail because: You are watching all bug changes.