I had a dual display on my old PC but it died. I built a new PC, but the graphics ports have changed in the last 10 years (I know). So I had to connect a DVI monitor to the DP port. It took me a while to figure out what it was, but it was the answer. Just plug and play and now I have a working dual display again. I can buy another monitor because I have a different connector. If you haven't updated in a while and you're like me, this is probably your answer.
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