Upon restarting, I was able to get the monitor above the laptop screen,
but only after a few attempts; the behavior doesn't seem to be
deterministic--sometimes one permutation will work, sometimes it won't.
Here is the output of xrandr:
Screen 0: minimum 320 x 200, current 1600 x 1800, maximum 819
Public bug reported:
"Displays" in the Gnome Control Center doesn't seem to be working.
When I connect an external monitor (Dell P2415Qb) to my laptop (XPS 13 touch
screen), most of the "Join Displays" options do not work: when I click "Apply"
after changing resolution or display arrangement, th
