login-session-start not works anymore?

[Антон Мацюк]

user at comp:~$ cat /etc/init/x11vnc.conf
start on login-session-start
script
/usr/bin/x11vnc -rfbauth /root/.vnc/passwd -o /root/.vnc/x11vnc.log
-display :0 -auth guess -many -forever -bg -rfbport 5900
end script

This script worked until upgrade to kubuntu 15.04.

Maybe this should be somewhat changed?
Maybe there is a bug?
I want to note that x11vnc should be launched when both network and
x11 is up and running. This was the reason to put the script into
/etc/init with login-session-start trigger.

Found this bug at launchpad:
https://bugs.launchpad.net/ubuntu/vivid/+source/lightdm/+bug/1414420
malch had this issue too.
The reason why I am writing to this list - this method is still not
working, even using lightdm 1.14.0-0ubuntu2 installed. :(

Will appreciate any help.
Thanks.