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  1. #1
    Join Date
    Jan 2018
    Location
    Canada
    Posts
    1

    PolicyKit failed over headless VNC

    I have a fresh install of Fedora 27 XFCE inside of a Hyper-V VM. I plan to use this 100% remotely hence the headless VNC. I have installed tigervnc-server and configured it to run on :0, done a "systemctl set-default multi-user.target" and opened up the vnc-service on firewall.

    The problem arrises when connecting over with tightVNC. Upon starting the session I am presented with an error box saying "XFCE PolicyKit Agent" and "GDBus.Error:org.freedesktop.PolicyKit1.Error.Fail ed: Cannot determine user of subject" and I click close to make it go away. Note that I am not asked to log in the desktop for my user is already up.

    But anything that requires elevation privilege does not work now. I don't get errors, just nothing happens when I try to open say gparted or install something with the GUI software manager. Is there additional steps I need to take with VNC config to get the user working correctly with PolicyKit and VNC?

    EDIT:

    I have tried disabling PolicyKit on startup and adding a policy

    Identity=unix-group:wheel (also tried *)
    Action=*
    ResultActive=yes

    and still can't launch anything requiring elevation.

    My xstartup in ~/.vnc/ contains

    Code:
    #!/bin/sh
    
    unset SESSION_MANAGER
    unset DBUS_SESSION_BUS_ADDRESS
    exec /etc/X11/xinit/xinitrc
    I feel like something is not starting up correctly. Or this is some permissions issue with remote vs local...
    Last edited by BunBun; 14th January 2018 at 12:06 AM.

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