When Auto Scaling is enabled Window item reports wrong x and y position when the window is not in the primary monitor in a multi monitor setup with high DPI setting of 200% or more.

1) Using two monitors with the same 4k resolution and 200% dpi
2) Enable auto scaling (QT_AUTO_SCREEN_SCALE_FACTOR=1 can be used)
3) Run attached example and start moving the window from the primary monitor towards a second monitor; you'll notice:

• While in the primary monitor. Window.x and Window.y report logical pixels values
• When around half the window gets into the non-primary monitor Window.x and Window.y jumps to physical pixels values

This was working in Qt 5.5