[LightDM] xvnc session and gtk greeter

[Gabriele Bulfon]

Hi,
I've been running LightDM + GTK Greeter on XStream Desktop for quite a while now, but never wanted to get into the issue of the vnc session not working.
Now I want to make it work ;)
So, I upgraded both LightDM to 1.18.1 and GTK greeter to 2.0.1 (supporting debugging configuration).
The couple works fine on the main desktop.
I enabled VNC both with and without password, and when I connect throught TightVNC viewer LightDM restarts, leaving this log:
[+7.47s] DEBUG: Got VNC connection from 192.168.1.3:53244
[+7.47s] DEBUG: Seat (null): Loading properties from config section Seat:*
[+7.47s] DEBUG: Seat (null): Starting
[+7.47s] DEBUG: Seat (null): Creating greeter session
[+7.48s] DEBUG: Seat (null): Creating display server of type x
[+7.48s] DEBUG: DisplayServer xvnc-1: Logging to /var/log/lightdm/xvnc-1.log
[+7.48s] DEBUG: DisplayServer xvnc-1: Writing X server authority to /var/run/lightdm/root/:1
[+7.48s] DEBUG: DisplayServer xvnc-1: Launching Xvnc server
[+7.48s] DEBUG: Launching process 24684: /usr/bin/Xvnc -SecurityTypes None :1 -auth /var/run/lightdm/root/:1 -inetd -nolisten tcp -geometry 1024x768 -depth 24
[+7.48s] DEBUG: DisplayServer xvnc-1: Waiting for ready signal from Xvnc server :1
[+7.48s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat1
[+7.59s] DEBUG: Got signal 16 from process 24684
[+7.59s] DEBUG: DisplayServer xvnc-1: Got signal from Xvnc server :1
[+7.59s] DEBUG: DisplayServer xvnc-1: Connecting to XServer :1
[+7.59s] DEBUG: Seat (null): Display server ready, starting session authentication
[+7.59s] DEBUG: Session: Not setting XDG_VTNR
[+7.59s] DEBUG: Session pid=24688: Started with service 'lightdm-greeter', username 'lightdm'
[+7.61s] DEBUG: Session pid=24688: Authentication complete with return value 0: Success
[+7.61s] DEBUG: Seat (null): Session authenticated, running command
[+7.61s] DEBUG: Session pid=24688: Not setting XDG_VTNR
[+7.61s] DEBUG: Session pid=24688: Running command /usr/sbin/lightdm-gtk-greeter
[+7.61s] DEBUG: Creating shared data directory /usr/var/lib/lightdm-data/lightdm
[+7.61s] WARNING: Could not create user data directory /usr/var/lib/lightdm-data/lightdm: Error creating directory: No such file or directory
[+7.61s] DEBUG: Session pid=24688: Logging to /var/log/lightdm/xvnc-1-greeter.log
[+7.63s] DEBUG: Session pid=24688: Greeter closed communication channel
[+7.63s] DEBUG: Session pid=24688: Terminated with signal 11
[+7.63s] DEBUG: Seat (null): Session stopped
[+7.63s] DEBUG: Seat (null): Stopping; failed to start a greeter
[+7.63s] DEBUG: Seat (null): Stopping
[+7.63s] DEBUG: Seat (null): Stopping display server
[+7.63s] DEBUG: Sending signal 15 to process 24684
[+7.64s] DEBUG: Got signal 15 from process 10
[+7.64s] DEBUG: Caught Terminated signal, shutting down
[+7.64s] DEBUG: Stopping display manager
[+7.64s] DEBUG: Seat seat0: Stopping
[+7.64s] DEBUG: Seat seat0: Stopping display server
[+7.64s] DEBUG: Sending signal 15 to process 24638
[+7.64s] DEBUG: Seat seat0: Stopping session
[+7.64s] DEBUG: Session pid=24676: Sending SIGTERM
[+7.64s] DEBUG: Seat seat0: Stopping session
[+7.64s] DEBUG: Session pid=24683: Sending SIGTERM
[+7.64s] DEBUG: Session pid=24683: Terminated with signal 15
[+7.64s] DEBUG: Session: Failed during authentication
[+7.64s] DEBUG: Seat seat0: Session stopped
[+7.64s] DEBUG: Session pid=24676: Greeter closed communication channel
[+7.64s] DEBUG: Session pid=24676: Terminated with signal 15
[+7.64s] DEBUG: Seat seat0: Session stopped
[+7.65s] DEBUG: Process 24684 exited with return value 0
[+7.65s] DEBUG: DisplayServer xvnc-1: Xvnc server stopped
[+7.65s] DEBUG: DisplayServer xvnc-1: Removing X server authority /var/run/lightdm/root/:1
[+7.65s] DEBUG: Seat (null): Display server stopped
[+7.65s] DEBUG: Seat (null): Stopped
[+7.79s] DEBUG: Process 24638 exited with return value 0
[+7.79s] DEBUG: DisplayServer x-0: X server stopped
[+7.79s] DEBUG: Releasing VT 7
[+7.79s] DEBUG: DisplayServer x-0: Removing X server authority /var/run/lightdm/root/:0
[+7.79s] DEBUG: Seat seat0: Display server stopped
[+7.79s] DEBUG: Seat seat0: Stopped
[+7.79s] DEBUG: Display manager stopped
[+7.79s] DEBUG: Stopping daemon
[+7.79s] DEBUG: Exiting with return value 0
I tried enabling gtk greeter debug, but have no output on its log.
Any idea how to solve this?
Thanks!
Gabriele
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