The graphics card's DisplayPort is not being detected.
Solution
Reconnect the DP cable and reinstall the graphics card driver (for AMD cards, it is recommended to uninstall and reinstall).
Try using another DP port on the dedicated graphics card, then reboot the operating system.
The issue might be with the DP cable; consider replacing it.
The Crystal Light firmware update may have failed; attempt to update the firmware again
Source: Pimax