Tested but unfortunately didn't help here :| this is a oneiric virtualbox installation with your ppa:
$ sudo dpkg -l | grep qt4 ii libqt4-dbus 4:4.7.4-0ubuntu8ppa2 Qt 4 D-Bus module ii libqt4-declarative 4:4.7.4-0ubuntu8ppa2 Qt 4 Declarative module ii libqt4-network 4:4.7.4-0ubuntu8ppa2 Qt 4 network module ii libqt4-opengl 4:4.7.4-0ubuntu8ppa2 Qt 4 OpenGL module ii libqt4-script 4:4.7.4-0ubuntu8ppa2 Qt 4 script module ii libqt4-sql 4:4.7.4-0ubuntu8ppa2 Qt 4 SQL module ii libqt4-sql-mysql 4:4.7.4-0ubuntu8ppa2 Qt 4 MySQL database driver ii libqt4-svg 4:4.7.4-0ubuntu8ppa2 Qt 4 SVG module ii libqt4-xml 4:4.7.4-0ubuntu8ppa2 Qt 4 XML module ii libqt4-xmlpatterns 4:4.7.4-0ubuntu8ppa2 Qt 4 XML patterns module $ sudo dpkg -l | grep unity-2d ii libunity-2d-private0 4.12.0-0ubuntu1.1ppa1 Unity 2D shared library ii unity-2d 4.12.0-0ubuntu1.1ppa1 Unity interface for non-accelerated graphics cards ii unity-2d-launcher 4.12.0-0ubuntu1.1ppa1 Unity 2D Launcher ii unity-2d-panel 4.12.0-0ubuntu1.1ppa1 Unity 2D Panel ii unity-2d-places 4.12.0-0ubuntu1.1ppa1 Unity 2D Places ii unity-2d-spread 4.12.0-0ubuntu1.1ppa1 Unity 2D Spread attached also a screencast, hope this help you ** Attachment added: "delay_on_logout.ogv" https://bugs.launchpad.net/unity-2d/+bug/812104/+attachment/2677770/+files/delay_on_logout.ogv -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/812104 Title: Long delay on session logout To manage notifications about this bug go to: https://bugs.launchpad.net/unity-2d/+bug/812104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs