Anyone have any idea how this works?

I'm using an older Macbook Pro with an Acer S271HL 28" external monitor. I was using a Mini DisplayPort to HDMI adapter (Thunderbolt to HDMI to connect the Macbook and the monitor. One day it stopped working; the connection, that is. Got a "No Signal" window. Rummaged around through my cables and found a HDMI to a dual USB and Thunderbolt connection and, figuring I had nothing to lose, hooked it up. Voila, monitor works again. So I have the HDMI coming out of the monitor and going into this adapter which is hooked to both USB and Thunderbolt ports. If I disconnect either the USB or the Thunderbolt, the monitor quits working ("No Signal"). Any ideas? I can certainly use this setup, but it seems odd.

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StevenGen

Your first Mini DisplayPort to HDMI adapter (Thunderbolt to HDMI) cable must be damaged, buy another cable and try it again. otherwise, be glad that it works with the HDMI to a dual USB and Thunderbolt connection.

jleachesq

Thanks very much. I'm practically giddy that it's working this way. It was just a shot in the dark. And I will get another adapter and see what happens. I guess I didn't think those things could fail without some visual damage. Thanks again!

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