Hello! I have a 2012 mac mini 2.5 GHz Intel Core i5 running running MacOS Mojave with 2 external monitors hooked up via HDMI and DisplayPort. The Issue: The monitor connection works correctly (I'm typing this on it now), until I attempt to wake the monitor from sleep. The Mac Mini itself clearly wakes when I click the mouse (the white light stops blinking and stays solid) and the monitor via HDMI wakes up properly. The issue is intermittently (non-consistent) the DisplayPort Monitor does not receive a signal, and does NOT wake up. I have to perform a restart of the machine to be able to use the DisplayPort monitor again. Can anyone offer any advice about this? It's very annoying not being able to quickly wake up the display when I need to use the Mac and have to perform a restart. Thanks in advance for everyone's time and help, it is greatly appreciated!