It wakes up when plugged into DP, scans the sources then cant find a signal then turns itself off. but when plugged into HDMI there is no issues
When it is not displaying, and you can drag your mouse across it (not visibly, but the appropriate movement is there), go to your display settings. If you are able to see the monitor in your settings, set the refresh rate to 60hz and apply the settings. Set the refresh rate back to what it was and apply again. Let us know if your monitor displays anything during the process.