Bug#597383: GDM3 greeter ignores screen order

[Arūnas Rukšnaitis]

In addition to already reported behaviour, the behaviour of the mouse 
cursor shows that the greeter ignores the display order information. 
When the mouse cursor moves to the left edge of the left screen, it 
re-appears on the right edge of the right screen, as if the right screen 
was to the left of the left screen.

I did not have this problem with the stable "wheezy" release. It got 
broken in  "testing" distribution.

Regards,
Arunas