I have the same problem, but oddly enough in Chromium - LibreOffice is OK. So I don't think this is related to LibreOffice. This only happens when maximised.
-- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1297254 Title: Unity Top-Menu Bar Not Showing Window Control Buttons Status in “unity” package in Ubuntu: Confirmed Bug description: Fresh Install This is similar to Bug #842566, but with an additional issue. When openinf LibreOffice, Window Controls do not appear on mouse-over in the Unity Top-Menu Bar. Also the LibreOffice window header is lost beneath the Unity Bar (See attached screenshots) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unity 7.1.2+14.04.20140320.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-19.39-generic 3.13.6 Uname: Linux 3.13.0-19-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CasperVersion: 1.339 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: Unity Date: Tue Mar 25 12:24:51 2014 LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140323) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1297254/+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