First off, to clarify the purpose of this forum and my role at Apple, this forum is specifically to support engineers building products for our platform, not consumer-level support. I'm responding here because I hope the information will be helpful to you and to other engineers working on our hardware. However, I can't comment on if or when this will be fixed, nor am I the right person to try and pass feedback through. Secondly, on the feedback side, I'd appreciate you filling a bug on this and then posting the bug number back here so I can ensure it gets to the correct team. That's the best way to get this feedback to the relevant engineering team. In any case, I can't provide you with a direct solution, but I can confirm that this is basically what's going on: From what I am reading, it appears to be that the M4 Pro has 3 display lanes, and when I plug the first Studio Display XDR, it is using 2 lanes. More specifically, the kernel logic that assigns display pipes to monitors is not particularly so