Comment 54 for bug 1292398

I have the same issue on Ubuntu 14.04 LTS.
Restarting the settings daemon works, but adding 2 seconds waiting time to the upstart script
caused my background to behave strangely (I'm using conky and the windows I move leave a copy of themselves on the desktop).
Also it doesn't solve the issue with the login screen. It is displayed on my tv, in another room.