Добрый день,
имею ubuntu server, я установил apt-get install ubuntu-desktop
потом установил apt-get install x11vnc и задал пароль
запускаю через службы
sudo systemctl daemon-reload
sudo systemctl enable x11vnc
sudo systemctl start x11vnc
[Unit]
Description="x11vnc"
Requires=display-manager.service
After=display-manager.service
[Service]
ExecStart=/usr/bin/x11vnc -auth /run/user/114/gdm/Xauthority -rfbauth /root/.vnc/passwd -rfbport 5900 -display :0 -noxdamage -forever -nevershared -o /var/log/x11vnc.log
ExecStop=/usr/bin/killall x11vnc
[Install]
WantedBy=multi-user.target
ps auxww | grep auth
gdm 1012 0.2 0.2 166216 20772 tty7 Sl+ 07:07 0:01 /usr/lib/xorg/Xorg vt7 -displayfd 3 -auth /run/user/114/gdm/Xauthority -background none -noreset -keeptty -verbose 3
root 1219 0.0 0.0 14228 924 pts/0 S+ 07:20 0:00 grep --color=auto auth
в логах при запуске
29/04/2016 07:49:25 passing arg to libvncserver: -rfbauth
29/04/2016 07:49:25 passing arg to libvncserver: /root/.vnc/passwd
29/04/2016 07:49:25 passing arg to libvncserver: -rfbport
29/04/2016 07:49:25 passing arg to libvncserver: 5900
29/04/2016 07:49:25 passing arg to libvncserver: -nevershared
29/04/2016 07:49:25 x11vnc version: 0.9.13 lastmod: 2011-08-10 pid: 965
29/04/2016 07:49:25 XOpenDisplay(":0") failed.
29/04/2016 07:49:25 Trying again with XAUTHLOCALHOSTNAME=localhost ...
29/04/2016 07:49:25 ***************************************
29/04/2016 07:49:25 *** XOpenDisplay failed (:0)
после из ssh
sudo systemctl stop x11vnc
sudo systemctl start x11vnc
29/04/2016 07:51:51 passing arg to libvncserver: -rfbauth
29/04/2016 07:51:51 passing arg to libvncserver: /root/.vnc/passwd
29/04/2016 07:51:51 passing arg to libvncserver: -rfbport
29/04/2016 07:51:51 passing arg to libvncserver: 5900
29/04/2016 07:51:51 passing arg to libvncserver: -nevershared
29/04/2016 07:51:51 x11vnc version: 0.9.13 lastmod: 2011-08-10 pid: 1200
29/04/2016 07:51:51 Using X display :0
29/04/2016 07:51:51 rootwin: 0xd5 reswin: 0x400001 dpy: 0x1232ea0
Пользователь добавил сообщение 30 Апреля 2016, 06:55:58:
поставил
sudo apt-get install kubuntu-desktop
все заработало