Comment 3 for bug 1510281

An observation:

I have two login accounts to the system, both have personalized desktop backgrounds.
Normally, the greeter assigns the selected user's desktop background before login.

When logging out now, the login greeter flickers and the default bluish desktop image is shown behind the login dialog, not my normal desktop image. If I log in in this mode, I get the wrong desktop resolution.

However, If I in the greeter dialog select the other user the selected user's desktop background returns behind the greeter dialog.
If I log in in this state the correct desktop resolution is used.

Summary: If I am able to make my own desktop image to show up behind the login greeter dialog by re-browsing the user list, I can log in with the correct screen resolution!