I also have this bug. It results in a failure to start my x11vnc service.
I had this in /etc/init/x11vnc.conf and it worked until this bug was introduced:
start on login-session-start script /usr/bin/x11vnc -xkb -auth /var/run/lightdm/root/:0 -noxrecord -noxfixes -noxdamage -rfbauth /etc/x11vnc.pass -forever -bg -rfbport 5900 -o /var/log/x11vnc.log end script
Now I get the error in the log, and the service fails to start.
I also have this bug. It results in a failure to start my x11vnc service.
I had this in /etc/init/ x11vnc. conf and it worked until this bug was introduced:
start on login-session-start lightdm/ root/:0 -noxrecord -noxfixes -noxdamage -rfbauth /etc/x11vnc.pass -forever -bg -rfbport 5900 -o /var/log/x11vnc.log
script
/usr/bin/x11vnc -xkb -auth /var/run/
end script
Now I get the error in the log, and the service fails to start.