Neil Ducoff wrote:
Appreciate your response. But my M4 iPad Pro never had service or repairs. Still the same as it was when I opened the seal on the box.
“Unknown display” doesn’t make sense.
While hopefully an uncommon occurrence, faults can (and do) occur with electronic devices. You would be best advised to visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to offer assistance:
Genius Bar Reservation and Apple Support Options - Apple
Assuming that your iPad is undamaged, as your iPad will be within its one year warranty, you can anticipate having the problem resolved without fuss.