@Myron   Is your BPi Pro reachable throu ssh? Does it boot? If you able to log in (ssh), you might append:   extraargs=drm_kms_helper.edid_firmware=HDMI-A-1:edid/1920x1080.bin video=HDMI-A-1:1920x1080@60   to /boot/armbianEnv,txt. I wouldn't use 8V power supply, when 5V are recommened.