afa

2. vim /etc/systemd/system/x11vnc.service

[Unit]
Description="x11vnc"
Requires=display-manager.service
After=display-manager.service
[Service]
#ExecStart=/usr/bin/x11vnc -xkb -repeat -forever -auth /var/run/lightdm/root/:0 -display :0 -rfbauth /etc/x11vnc.pass -rfbport 5900 -bg -o /var/log/x11vnc.log
ExecStart=/usr/bin/x11vnc -repeat -nomodtweak -xkb -noxrecord -noxfixes -noxdamage -display :0 -auth guess -rfbauth /etc/x11vnc.pass
ExecStop=/usr/bin/killall x11vnc
Restart=on-failure
Restart-sec=2
[Install]
WantedBy=multi-user.target

3.vim /etc/init/x11vnc.conf

[Unit]
Description="x11vnc"
Requires=display-manager.service
After=display-manager.service
[Service]
ExecStart=/usr/bin/x11vnc -repeat -nomodtweak -xkb -noxrecord -noxfixes -noxdamage -display :0 -auth guess -rfbauth /etc/x11vnc.pass
ExecStop=/usr/bin/killall x11vnc
Restart=on-failure
Restart-sec=2
[Install]
WantedBy=multi-user.target