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Cable is not VESA compliant. Hence, you will have issues with waking up your connected display when resuming your computer from a soft (screen only off) or hard (low power state) sleep. Pin 20 is connected. Hence, both the display and computer try to provide 3.3V on pin 20. This causes link negotiation issues, which leads to the aforementioned inability to "wake" the connected display. Tested on 2 different displays and 2 different computers with mini display ports, for a total of 4 configurations that all showed that the cable is at fault.