The screens are called MUFIDS (multi-user flight information display system)
The large screens show arrivals and departures. There are also displays with flights leaving within 90 minutes.
The booths have small screens
The small screens are touch screens and can show, arrivals, departures, baggage carousel, weather, security line wait times.
If a screen is not working you can report it at 612-726-8183. Please look for a number of the screen before calling.