Comment 2 for bug 1545088

Unity8/QtMir/Mir is not updating the display configuration when changing from tablet to desktop mode, so clients cannot tell what mode they should appear in.

QtMir needs to allow Unity8 to set the form factor property on the Display.
Mir needs to fix https://bugs.launchpad.net/mir/+bug/1556142 so that the display doesn't flicker on display change