Description of problem: /etc/xdg/autostart/polkit-gnome-authentication-agent-1.desktop only contains "NotShowIn=KDE;" and lacks "LXDE". This leads to bug reports as in bug 657006 Version-Release number of selected component (if applicable): polkit-gnome-0.97-8.fc15 How reproducible: always Steps to Reproduce: 1. Install LXDE on a default Fedora installation 2. Log into LXDE Actual results: Error message from polkit-gnome-authentication-agent-1: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: An authentication agent already exists for the given subject Expected results: polkit-gnome-authentication-agent-1 should not be started in LXDE by default.
This was fixed by moving the /etc/xdg/autostart/polkit-gnome-authentication-agent-1.desktop into the gnome-session package and making it OnlyShowIn=GNOME. For more info refer to http://lists.fedoraproject.org/pipermail/devel-announce/2011-February/000758.html I don't really like this solution but it fixes the problem for LXDE.