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Computer was moved to another desk. Tower is on, monitor is black but showing white arrow. Blue light is on and earlier it was displaying No Signal

I have a black screen. The device manager finds the display on my PC but Windows11 tell me that "Display 1 isn't active." Therefore I have a second display running while my PC display is black. Yes, I have tried all the suggestions found in Windows and on the internet with updating and removing and rolling back and shutting down and rebooting and command prompts with "cleanup." I do not have a graphics card installed. I have not changed anything on the PC or downloaded any new programs that might conflict with the display and it worked find until one day it did not. You might think that it is a burnt out display, but the Dell logo shows as the PC is booting up. Any last suggestions before I throw my PC out the window?

XPS 13 9300