That still bugs me. Apple broke DSC in the first beta of Big Sur, and it hadn't been fixed when I switched monitors about a year ago, a little less. Catalina o

That still bugs me. Apple broke DSC in the first beta of Big Sur, and it hadn't been fixed when I switched monitors about a year ago, a little less. Catalina on my cheesegrater Mac Pro would happily drive 2 4K 10-bit screens at 144Hz (via TB3) Big Sur? Not so much. Had to downgrade DSC from 1.4 to 1.2 on my monitors, and even then I could only get 120Hz at 8 bit, 95Hz at 10bit, IIRC. Still not "shabby" but annoying. Really seems like it was broken as something to do with the Pro Display XDR.