I have an old Cinema Monitor with Mini display connector going to an HDMI, and a LG Ultra Fine Monitor USB C going to a USB C on my Mac Mini M1. I can see one or the other if they are direct to USB C, but the one going to HDMI does not connect.
How do I connect a Apple Cinema Display from my old Mac Pro (2017) and my new LG Ultra Fine monitors to my Mac mini M1? I can see One or the other when connected to the USB C, but not both, even if I connect one monitor to the HDMI port. I have tried all combinations to no avail.