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I just incidentally solved this problem while trying to figure out how to use one Thunderbolt display with 2 macbook Pros [which I explained here]. If you want to use a Thunderbolt display with a PC that only has HDMI you can use a mini displayport f to HDMI cable (like this one for $50). You could also do the longer solution with a switch that I describe ...


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I saw somewhere that if I use DisplayPort instead of HDMI, I may have additional options, but I can't find any official documentation. It depends on the capability of the monitor, the cables and the converters. If, for instance your monitor supported HDMI spec 1.4 but you used an older cable certified with the 1.2 spec, you'd be limited to the refresh ...


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No native MacOS solution that I could find. I use a free little app called 'Display Rotation Menu' - it works well.


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I understood is that from HDMI to VGA, it does not send a signal since it is analog and it does not work. No. HDMI sends a signal, but as you've already noted, one is digital and the other is analog. The signal is there, but it may not be sufficient enough to be detected. My question is could I go from HDMI to DVI, then from DVI to VGA; would it work? ...


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Neither of the above two answers has solved the problem. Maybe I can move the ball forward a couple of inches ... I, too, clicked on the wrong resolution for my external monitor and now I can only use the monitor in "Mirror Displays" mode. When in separate mode, the external monitor is black except for a message saying "DVI NO SIGNAL". I ...


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Fix for me: Leave both MacBook and monitor connected and powered on Wait until MacBook display turns off (can probably tweak energy settings to force) Press a key to wake, and both displays wake up Detailed info: MacBook Pro (15-inch, 2017) - 2.8GHz i7 Graphics - Radeon Pro 555 2GB Mac OS - Catalina 10.15.7 Monitor: Apple Cinema HD 23" USB connection ...


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The USB-C ports on most MacBook Pro laptops all natively output a DisplayPort signal. Most are Thunderbolt 3 though there are a few that are only USB with Alternate Mode display. So, when you go from that USB-C port to HDMI, you're converting the signals. That signal may stay high because the conversion isn't "clean." This is why I always ...


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Can I buy a USB-C to DVI cable and plug the USB-C side directly to the MacBook Pro USB-C port? Yes. This is exactly how you would do it. I would avoid using HDMI on your first monitor and instead opt for a pure DisplayPort to DisplayPort connection (the Thunderbolt ports natively output a DP signal). But if you must, use an active adapter for best results. ...


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