OK, I submitted this bug to KDE developers. Thank you! Check at https://bugs.kde.org/show_bug.cgi?id=234521
** Bug watch added: KDE Bug Tracking System #234521 http://bugs.kde.org/show_bug.cgi?id=234521 -- Closing window by clicking left upper icon requires four clicks not two. https://bugs.launchpad.net/bugs/564429 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kdebase-workspace in ubuntu. -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs