iOS: Wrong Screen resolution in Landscape Mode

If i switch the iPad in Landscape, QSCreen returns the screen resulution 768x1024, it should be 1024x768, the resulution values are ok, but the values are from portrait mode.

QScreen::orientation returns the correct orientation. In portrait mode all is working fine, in landscape mode the main window maximized have the wrong size. On the richt side there is emtpy space, 1/3 of the bottom window is not visible.