I have a Mac Pro, Late 2013 (Trashcan) with Dual D700 Graphics and I recently installed Windows 10 using Bootcamp.
In Windows I went into the AMD FirePro Control Panel and clicked "Enable 10-bit Colour".
Windows restarted and now I just get a blank screen. I tried connecting to different displays using either the HDMI or Thunderbolt but always blank. I've rebooted several times. I've tried Command + R on startup but no such luch.
What have I done? Can I fix this?