[tolle]

I mean did he try to just daisy chain them? He claims that he wanted to use DisplayPort 1.4 for connectivity. But the monitors do support daisy chaining over thunderbolt, and he also states that. But why not daisy chain? I mean I get that it's frustrating to get the thing working with DisplayPort, dongles and docks. But the best solution was right in front of him?

[jamesfmilne]

I believe macOS on Apple Silicon or Intel does not support DisplayPort MST (Multi-Stream Transport) which is required for daisy-chaining to work.

[jsjohnst]

MacOS supports MST mirror (which imho is mostly useless outside niche uses), but not MST extend.

[tolle]

Over Thunderbolt at least. I imagine it might subpar on non supported stuff.

[jsjohnst]

Not sure what you mean, Thunderbolt is unrelated to MST.

MST mirroring works with all the MST capable DP monitors I’ve tried (half dozen or so), but have never got MST extend to work.

[ToniCipriani]

I suppose it's the common knowledge that Mac OS doesn't support MST properly and author assumed it applied to Thunderbolt docks as well. This is on Apple for not implementing that, because it's not the hardware. Intel Macbooks work perfectly fine with regular DP Alt Mode docks in Boot Camp.

[tolle]

Sure. But it’s like in the marketing pics even. It works over thunderbolt. And that’s what they’ve said.