Thursday, 20 June 2019

Mac Mini HDMI-to-DVI to VGA-to-Monitor?


I just purchased a Mac Mini and totally forgot that Apple upgraded to Mini DisplayPort (I still have the mini-vga to vga cable on my MacBook).


So what next? Do I have to buy a Mini DisplayPort to VGA adapter? Or can I somehow hook up the Mini to my VGA monitor with the HDMI to DVI adapter that I got in the box?


Also, I have one of these, but it doesn't seem to fit in the DVI:


adapter



Answer



Modern digital displays (like LCDs) that use DVI use the DVI-D flavor. That means there are no pins above and below the blade. The included HDMI-to-DVI is DVI-D, so that it can plug into such monitors (or monitor extension cables). If it were to-DVI-I, it would not fit because there are no sockets for the pins around the blade on many/most digital displays.


To convert DVI to VGA, the other end has to be either DVI-A or DVI-I, because those are the only two that carry the analog signals. Once you have used an HDMI-to-DVI-D adapter, those DVI-to-VGA adapters won't work.


Furthermore, there are no simple HDMI-to-DVI-A (or -I) cables/adapters, because they are not directly compatible. HDMI does not carry an analog signal. You need an active converter; HDMI-to-VGA converters exist, but are in the $100 range.


I've never seen a DisplayPort to DVI-I adapter. Even if such a thing existed, you might as well skip the extra conversion step and get a Mini DisplayPort to VGA adapter. Not necessarily the $29 one made by Apple, although it might be more likely to "Just Work".


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