I'm using the monitor with my MBP via DP connection. Do I have to use the upstream USB cable from my MBP to the monitor in order to use the USB ports behind or is it sufficient with just single DP port (or maybe just HDMI)?
I prefer to only have 1 cable between my MBP and the monitor if possible.
Although never tested with Apple hardware or software, the U2715H USB downstream ports usage was detailed in the U2715H User's Guide, pages 6 and 10 =
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