I have an Ubuntu 16.04 headless system that I recently installed xfce4 and vnc4server onto. I can connect via VNC and see the desktop, but trying to launch privileged apps such as Synaptic silently fails.
synaptic.desktop entry shows use of
synaptic-pkexec, which is just a small wrapper script for using
Running the desktop entry directly shows the issue:
$ pkexec --disable-internal-agent "/usr/sbin/synaptic" "$@" Error executing command as another user: No authentication agent found.
Question is - how do I resolve this? I'm new to PolicyKit, and I'm a bit surprised that
apt install xfce4 apparently did not setup an authentication agent. Or perhaps I'm not automatically starting the desktop properly - here's my startup script:
~$ cat .vnc/xstartup #!/bin/sh # Uncomment the following two lines for normal desktop: # unset SESSION_MANAGER # exec /etc/X11/xinit/xinitrc [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey vncconfig -iconic & # x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & x-window-manager & startxfce4 &