Hi Michael, On Sa 22 Mär 2014 16:44:34 CET, Michael DePaulo wrote: > 5. polkit-gnome-authentication-agent-1 is started as gdm, but it > should be started as the user also. > > Test system: > CentOS 6.5 64-bit > x2goserver: 4.0.1.13 > x2goserver-xsession: 4.0.1.13 (same behavior when this package is > not installed) > nx-libs: 3.5.0.22 > GNOME > (This distro uses ConsoleKit, not systemd-logind) > > [batmin@mothership-el6 ~]$ pkexec gpk-application > Error executing command as another user: No authentication agent was found. > [batmin@mothership-el6 ~]$ ps -ef | grep agent > gdm 653 1 0 11:06 ? 00:00:00 /usr/bin/spice-vdagent > gdm 671 645 0 11:06 ? 00:00:00 > /usr/libexec/polkit-gnome-authentication-agent-1 > batmin 1246 1 7 11:08 ? 00:00:01 > /usr/lib64/nx/../x2go/bin/x2goagent -extension XFIXES -nolisten tcp > -dpi 96 -D -auth /home/batmin/.Xauthority -geometry 1024x768 -name > X2GO-batmin-52-1395500884_stDGNOME_dp32 :52 > root 1532 1 0 Mar21 ? 00:00:01 /usr/sbin/spice-vdagentd > batmin 1710 1 0 11:08 ? 00:00:00 /usr/bin/spice-vdagent > batmin 2032 2015 0 11:08 pts/0 00:00:00 grep agent > [batmin@mothership-el6 ~]$ /usr/libexec/polkit-gnome-authentication-agent-1 > > (polkit-gnome-authentication-agent-1:2035): polkit-gnome-1-WARNING **: > Unable to determine the session we are in: Remote Exception invoking > org.freedesktop.ConsoleKit.Manager.GetSessionForUnixProcess() on > /org/freedesktop/ConsoleKit/Manager at name > org.freedesktop.ConsoleKit: > org.freedesktop.ConsoleKit.Manager.GeneralError: Unable to lookup > session information for process '2035' > org.freedesktop.ConsoleKit.Manager.GeneralError > Unable%20to%20lookup%20session%20information%20for%20process%20%272035%27 > [batmin@mothership-el6 ~] I assume that this GNOME polkit daemon is from GNOMEv2(?). Any chance you can provide me with a link to the source code? Before you do this, please check if the X2Go Session is using x2goserver-xsession and if the session is launched (via xinitrc or so) with prefixed ck-launch-session. In Debian/Ubuntu, this is handled via /etc/X11/Xsession.d/90consolekit. Something equivalent should exist for RHEL-6 based distros. Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb