Mac Mini (late 2012 and later): Doesn't wake display after sleep

When waking your Mac mini (Late 2012 or later) from Safe Sleep, you may notice that the sleep indicator light turns on and the system wakes but your display doesn't. This can occur if you have FileVault enabled.

To work around this issue, you can enter your password even while the display is dark. Then, press Enter. This should log you in and wake the display.