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I tried to make my tightvncserver start at boot on parabola arch Gnu/Linux in an auto GUI login setup using the wiki https://wiki.archlinux.org/index.php/TigerVNC#Using_tigervnc.27s_x0vncserver and by creating x0vncserver.service systemd unit following that and then systemctl enable x0vncserver.service but when I boot/reboot, I see no vnc server active and then checking I see this

# systemctl status x0vncserver.service

* x0vncserver.service - Remote desktop service (VNC)

   Loaded: loaded (/etc/systemd/system/x0vncserver.service; enabled; vendor preset: disabled)

   Active: inactive (dead) since Sat 2017-07-01 20:42:55 +06; 1min 34s ago

  Process: 302 ExecStart=/usr/bin/sh -c /usr/bin/x0vncserver -display :0 -rfbport 5900 -passwordfile /home/peruvian/.vnc/passwd & (code=exited, status=0/SUCCESS)



Jul 01 20:42:52 sky systemd[1]: Starting Remote desktop service (VNC)...

Jul 01 20:42:55 sky systemd[1]: Started Remote desktop service (VNC).

and my

# journalctl -xe | grep vnc

-- Subject: Unit x0vncserver.service has begun start-up

-- Unit x0vncserver.service has begun starting up.

-- Subject: Unit x0vncserver.service has finished start-up

-- Unit x0vncserver.service has finished starting up.

Jul 01 20:47:08 sky systemd[1]: x0vncserver.service: Main process exited, code=exited, status=1/FAILURE

Jul 01 20:47:08 sky systemd[1]: x0vncserver.service: Unit entered failed state.

Jul 01 20:47:08 sky systemd[1]: x0vncserver.service: Failed with result 'exit-code'.

But if I run the command systemctl start x0vncserver.service or systemctl restart x0vncserver.service after loading the desktop, it works without any issue as the # systemctl status x0vncserver.serviceshows

# systemctl status x0vncserver.service

* x0vncserver.service - Remote desktop service (VNC)

   Loaded: loaded (/etc/systemd/system/x0vncserver.service; enabled; vendor preset: disabled)

   Active: active (running) since Sat 2017-07-01 20:56:53 +06; 2s ago

  Process: 924 ExecStart=/usr/bin/sh -c /usr/bin/x0vncserver -display :0 -rfbport 5900 -passwordfile /home/peruvian/.vnc/passwd & (code=exited, status=0/SUCCESS)

 Main PID: 925 (x0vncserver)

    Tasks: 1 (limit: 4915)

   CGroup: /system.slice/x0vncserver.service

           `-925 /usr/bin/x0vncserver -display :0 -rfbport 5900 -passwordfile /home/peruvian/.vnc/passwd



Jul 01 20:56:53 sky systemd[1]: Starting Remote desktop service (VNC)...

Jul 01 20:56:53 sky systemd[1]: Started Remote desktop service (VNC).

and my default.target is

# systemctl get-default       

graphical.target

I guess the service starts earlier than it supposed to and fails due to lack of resources at boot.

As x0vncserver will only start after xsession, and as mine is an LXDE environment, the easier way is to create a script.sh file like following

#!/bin/bash

x0vncserver -display :0 -rfbport 5900 -passwordfile ~/.vnc/passwd

and make it executable by sudo chmod +x script.sh and add a line in ~/.config/lxsession/LXDE/autostart file like following

path_to_the_script_file/script.sh

and the x0vncserver starts as my LXDE desktop session starts and that's what I need.

A little late, but I also just stumbled over this problem.

The problem is, that x0vncserver needs a logged in X session for your user, so you have to ensure two things:

1. Your user must be configure for autologin
   


2. 
   

   Put a sleep in your ExecStart command, so that the desktop can start and log in before x0vncserver service tries to start:

   
   
   

   ExecStart=/usr/bin/sh -c 'sleep 3 && /usr/bin/x0vncserver -display :0 -rfbport 5900 -passwordfile /home/peruvian/.vnc/passwd &'
   
   

   
   

The sleep did the trick for me and now my x0vnc is working.