PROP_SETA32(ob_root, net_desktop_geometry, cardinal, geometry, 2);
screen_physical_size.width = geometry[0];
screen_physical_size.height = geometry[1];
PROP_SETA32(ob_root, net_desktop_geometry, cardinal, geometry, 2);
screen_physical_size.width = geometry[0];
screen_physical_size.height = geometry[1];