Fix Black Screen / No Display on the ACEMAGIC M5
A black screen on the ACEMAGIC M5 usually falls into one of three situations in ACEMAGIC's own troubleshooting: the machine powers on with the indicator light on but no picture at all, it shows the BIOS or Windows welcome screen and then goes black once the desktop loads, or it wakes from sleep to a dead display. The M5 only outputs video through its HDMI 2.0, DisplayPort 1.4b, and USB-C DisplayPort Alt Mode connectors, so a wrong monitor input, a flaky cable, or a crashed Intel UHD Graphics driver are the everyday culprits, with fast startup and a wedged wake state behind the sleep-related cases.