On: M1 Thunderbolt ports don’t fully support USB 3.1 G...

[Terretta]

Or a dock. Not disputing the DP MST, just noting there are docks that can drive 2 x 6K.

CalDigit's new dock takes a single TB4 cable to drive, and can do:

    - 2x TB4
    - 1x DP 1.4
    - supporting
    - 2x 5K60 OR
    - 1x 8K60 OR
    - 1x 4K144 OR
    - 1x 1440p240

According to https://dancharblog.wordpress.com/2021/02/05/usb4-tb4-docks/

Or, as CalDigit puts it (see final paragraph):

Single 8K or Dual 6K Monitors

Users on Windows can connect a single monitor up to 8K resolution, and users on macOS can connect up to a single 6K 60Hz monitor.

When connecting dual monitors Windows users can connect up to dual 4K 60Hz monitors, and macOS users on M1 Pro or M1 Max computers can connect up to dual 6K 60Hz monitors. Users on original M1 computers cannot connect dual monitors as original M1 computers do not support dual displays.

[zeusk → Terretta]

A daisy chaining monitor is essentially an in-built dock in most cases.

I work on Displays at Microsoft :)

[jsjohnst → Terretta]

How does it do 2x 5K60?

The only true 5K monitors I know of are the LG 5k and the Apple Studio Display which are both TB or USB-C monitors, not DP. 5K60 takes ~25gb/sec, multiply times two and the single TB cable as input can’t handle 50gb/sec.

[goosedragons → jsjohnst]

Display stream compression. You can only do it with the ASD as the LG doesn't support DSC.

[jsjohnst → goosedragons]

Ah! Didn’t realize the ASD supported DSC. Ty!