After installing the PPA everything seems to work again. Previously I had launch the unity command in the terminal. The bug was showing every time I log in.
** Attachment added: "log with testing PPA installed" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1532226/+attachment/4653342/+files/unity-panel-service.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1532226 Title: No menu bar in gtk apps on fresh boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/1532226/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs