I believe the issue may lie with Qt. QMenuBar only supports "native" menu bars in OSX & windows CE as stated in http://doc.qt.io/qt-5/qmenubar.html#nativeMenuBar-prop
This causes calls to QMenuBar::setVisible to fall through to QWidget::setVisible which then sets the menu bar visual component of the app window to visible. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to libdbusmenu-qt in Ubuntu. https://bugs.launchpad.net/bugs/1436405 Title: Duplicate menu (both unity and in-app) for Qt5 apps To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1436405/+subscriptions -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
