Why does Okular change my Cinnamon key bindings?

Community
1

I’m using Ubuntu 24.04.4 LTS with Cinnamon 6.0.4.

I’ve configured Ctrl-Alt-T to open a new terminal (xfce4-terminal) and PrtScrn to open gnome-screenshot.

When starting Okular to open a PDF the key bindings change (temporarily): Ctrl-Alt-T opens Konsole, PrtScrn opens Spectacle. Why?

When starting Okular without (!) opening a PDF the key bindings don’t change.

When key bindings have changed and I restart Cinnamon (wether by logging in/out or by restarting it from the taskbar’s context menu), my intended key bindings are back again.

2

well… ubuntu comes with gnome, and while cinnamon is also GTK based, okular is Qt based belonging to the KDE plasma desktop.

so you have quite a mix going on there… you should expect some weirdness.

the only advice i can offer is that i use this command to list what files were changed in the last minute to help ferret out what is going on.

find -not  \( -path './snap' -prune \) -not \( -path './.cache'  -prune \) -type f -mmin -1  -printf "%C+ %p\n" | sort -n | tail -10
1 Like
3

I’ve never seen this weirdness in two decades running this mix of a gnome-based desktop environment and some additional kde/qt-based software. That’s why I’m curious about it.

The only changed files your nice find command lists are these two

~/.local/share/kactivitymanagerd/resources/database-shm
~/.config/okularrc

My guess is that Okular (or a used lib) changes something within the shared memory. If I restart Cinnamon the original settings are back. Fun fact: If I start Okular (btw: 23.08.5) the second time after having restarted Cinnamon then Okular won’t change the key bindings again. This is somewhat weird, too. :smiley:

4

Mystery half solved: Okular (and other KDE Plasma programs like Kate, Konversation or Krunner) start /usr/bin/kglobalaccel5.

Solution: Restart Cinnamon or killall -HUP kglobalaccel5 (attention: kills all children, too)