I am pleased to report that my new Mac mini M1 perfectly works with 27 inch Apple Cinema Display LED (with Mini Display Port cable) using the adapter of Minidisplay (female) and thunderbolt 3 (male). At first, I bought the adapter of thunderbolt 2 to 3, which did not work. I called Apple support, but they could not find the solution (I told them the serial no of my display and what type of adopter I got, though...). Then, I read the posts here and realised that I got a wrong adopter . I purchased an adapter for MiniDisplay cable, and it worked! While waiting for the MiniDisplay adapter, I was using my TV connecting HDMI cable. But to be honest, I liked the TV version, too, or more, as it was amazing to use M1 with a massive display. Due to the sound quality, I am using Cinema Display now.