Comment 15 for bug 1211892

(In reply to Mads from comment #13)
> I tested starting /etc/init.d/consolekit before lightdm at version 1.7.7,
> and that didn't work... does this mean that there has been some fixing
> between 1.7.7 and 1.7.9, or does Jimmy.Jazz do something special that I
> haven't grasped yet?

Do you mean you did:
root@bla # /etc/init.d/consolekit start
root@bla # openvt -c 7 -- /usr/sbin/lightdm

For me that works with 1.7.4, 1.7.7 and 1.7.9 (didn't try other versions).
Of course I had consolekit already running (so no need for the first command) and had to stop /etc/init.d/xdm before running the second.