This happens to me too. I think that this is trigged when I open Firefox if libreoffice is opened fullscreen. Then unity doesn't hide until I close libreoffice. It stays on even if I change desktop.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/764253 Title: unity panel does not hide if libreoffice set to fullscreen Status in Unity: Confirmed Status in “libreoffice” package in Ubuntu: Confirmed Status in “unity” package in Ubuntu: Confirmed Bug description: Binary package hint: unity If I set a libreoffice application (which is not maximized) to fullscreen the unity panel does not hide and obscures the application. This does not happen if I set it to fullscreen after it is maximized. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: unity 3.8.8-0ubuntu2 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,scale,session,unityshell] Date: Sun Apr 17 22:28:26 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: unity UpgradeStatus: Upgraded to natty on 2011-04-12 (5 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/764253/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

