I have a AMD 5600 video card and 3 monitors. I purposely used Zorin in "Try" mode from a USB drive and confirmed that everything worked as intended.
After installing, monitor 1 is blank. It shows up in the "Display Settings" but is turned off. I turn it on, and press apply. All monitors go blank for a moment then... nothing. Same as boot. Only monitors 2 and 3 work.
Where do I need to look to start troubleshooting this?