I see this in Qt Creator as well as in a self-compiled LyX on Ubuntu 14.04. It might be useful to note that in the LyX case, one can get the menu bar back by executing the following command (in LyX's internal language) ui-toggle menubar Removing appmenu-qt5 solved the problem in both cases for me.
-- You received this bug notification because you are a member of DX Packages, which is subscribed to appmenu-qt5 in Ubuntu. https://bugs.launchpad.net/bugs/1307619 Title: Qt Creator Menu bar is missing at Gnome3 or KDE Desktop Status in LyX - The Document Processor: New Status in “appmenu-qt5” package in Ubuntu: Confirmed Bug description: 1. Open "Qt Creator" Version 3.0.1 at the Gnome3 Desktop 2. Menu bar is missing. ------------ workaround ---------------------------------- After Deinstall appmenu-qt5 is the Menu bar working again. Open Terminal: sudo apt-get remove appmenu-qt5 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: appmenu-qt5 0.3.0+14.04.20140314-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2 Uname: Linux 3.13.0-8-generic i686 ApportVersion: 2.14.1-0ubuntu2 Architecture: i386 CurrentDesktop: GNOME Date: Mon Apr 14 18:52:18 2014 InstallationDate: Installed on 2014-02-14 (58 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140214) SourcePackage: appmenu-qt5 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/lyx/+bug/1307619/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
