Why does my second display shut off?
Until recently, I was using two separate USB-C ports, one for power and the other to my HDMI second display. I was using the two because the display is DVI so I had an adapter that made using any other device on the Apple USB-C Digital AV Multiport Adapter was not possible as it was too wide and blocked the ports.
So I bought a correct cable, HDMI to DVI, which works fine. What I have noticed, on one or more occasions, that when I plug the USB-C cable on the adapter into the power, the second screen shuts down and I have to completely restart the Macbook Pro to have it recognized.
This sounds suspiciously like either a faulty adapter or driver but I would like to hear from others.
Thanks!
MacBook Pro (13-inch, Late 2016, 4 TBT3), Sierra 10.12.5