My Dell is working well right from the start. I also bought a pluggable USB-C Dual 4K HDMI adapter, since both monitors are also 4K. Into which port should I plug this device, since the Dell is plugged into the HDMI port at present, with no known issues. And I have Sequoia 15.2 installed
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Mac mini (M1, 2020)
I’d suggest returning that adapter and getting a USB-C to HDMI adapter or adapter cable that depends on your M1 Mac mini’s native DisplayPort output, rather than on a DisplayLink workaround. You can find many such adapters and adapter cables on Amazon.
The only advantage of a DisplayLink-based adapter in this situation would be if you wanted to connect three displays to the M1 Mac mini and were willing to put up with serious compromises.
Connecting Lenovo L12821 monitor to Mac mini M1 alongside Dell monitor
