Hi! The exclusive fullscreen mode is broken in KDE for Java applications as I explained here: https://bugs.kde.org/show_bug.cgi?id=276159
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7057287 (not yet visible) After some investigations, the problem comes from Java which does not tag the window as fullscreen. Do you know how to fix this bug? Best regards.