MST Hub straight from the dGPU on Framework Latop 16 running Arch Linux

Framework Laptop 16 Linux
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My pre-order is Batch 10 so I have a while to wait, but I’m still prepping!

I have found an adapter on amazon that as far as I can tell makes sense for what I need. I basically want to have 2 external monitors, plus the built in monitor, all running off the dGPU. Would this be possible to do using this dongle?: https://www.amazon.co.uk/WJESOG-Displayport-Splitter-Transport-Windows-USB-C-2-DP/dp/B0B2L971Z4/

Additionally, if I were instead to buy a USB-C hub with a built in MST hub, should I be able to run KVM through the one USB-C port, I am aware it has USB2.0 but I am unsure if this is a good idea. I will definitely be using the separate NIC and USB ports for file transfers though ^^
This way I can have a pseudo-docking setup with three monitors, and only one port required (I am ignoring charging for now)

Thanks for any help <3

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That dongle should work, however the specs indicate that it is limited to DisplayPort 1.2 which has lower bandwidth and worse features than newer DisplayPort versions.

Instead I suggest this dongle as it supports a newer standard and also has USB ports (and an Ethernet port limited to 480 Mbps as well as a charging port, although the charging port won’t work for charging the laptop): https://www.amazon.co.uk/dp/B085VLPYDR

Yes that should work, however beware that many of those hubs will take away bandwidth from DisplayPort and try to allocate it to USB 3.0 bandwidth (which ends up just wasting the bandwidth as the port doesn’t support USB 3.0). The hub I linked above doesn’t do that and allows full bandwidth to DisplayPort (which helps ensure your displays can run at full quality).

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Awesome stuff, thanks so much!

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DP1.2 is gonna limit your display options a lot, you can do 2 1080p60 displays but above that you’ll run into walls pretty quickly

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I wanted to jump in here as I am struggling. To my knowledge, the only output for external displays for the dGPU is on the back of the dGPU. We cannot access it with any of the i/o ports on the side of the laptop.

Are you using this plugged into the back of the dGPU?

I am looking at getting one of these to plug into a KVM to have two monitors off the dGPU, then use a Caldigit or other dock, plugged into the port 1 i/o for power and peripherals. This way, when I dock my computer I have two connections to make, but it will beat plugging in two monitors, and moving peripherals around.

I can’t find any other just 2x DP1.4 MST hubs without everything else, so if I can use it as I intend that would be amazing.

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Hi!
I have the MST hub plugged directly into the dGPU yes, it works perfectly.
I also use mine for mouse input, but I wouldn’t use it for anything that requires more speed over USB (like file transfer) since the port is not designed for that.
Hope this helps!