The problem seems to have disappeared after I removed all okular configuration files in ~/.kde/share/apps/okular/ and ~/.kde/share/config/ .
** Changed in: okular (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to okular in Ubuntu. https://bugs.launchpad.net/bugs/1091870 Title: okular switches to full-screen after software raise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/okular/+bug/1091870/+subscriptions -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs