so my schools got a paradigm system and we have one of those cables portable touchscreens it turns on fine but the touch screen does not work at all won’t allow you to click if there a system setting or some thing I need to do to turn it on or is broke and we need to buy a new one. Thanks!
Unfortunately there are a host of possible situations that fit your description.
Fortunately ETC has the best tech phone support in the known universe. If you have access to the main dimmers or Paradigm rack then you might find a sticker with the "job number". That number will help tech support pull up info on your school.