Hi. I am looking to order two 2560x1440 monitors, which both support DisplayPort 1.2 MST (i.e. daisy chaining). I hope to pair these with my current 1920x1200 monitor via MST. However, this older monitor does not support DP at all.
Given that I hope to hook all three of these displays to a laptop DisplayPort output over USB-C (with a USB-C to DP cable connecting the laptop with the first monitor), and there aren’t any other video output ports on the laptop, am I able to use an active DP to HDMI converter to connect the last monitor to the chain? The converter would be from the 2nd monitor’s DP out, in order to connect to HDMI in on the last monitor.
Why does HDMI need to support MST? Only the protocol converter needs to support MST. It takes the MST signal, and outputs an HDMI signal. The problem is, you chose a converter that can’t do that?
So, interesting update. Even though internal documentation indicates MST isn’t supported, I setup a quick test with 2 displays to see if the MST signal was able to be converted from the DP output of the first display in the chain. It worked!
Worth noting that MST implementations can behave differently, so there’s a very good chance this won’t work in all setups, but certainly worth a try.
Chomebook Plus -> Plugable USBC-DP adapter cable -> Dell Ultrasharp 2560x1440@60hz -> Plugable DP-HDMI rev B -> Non-Dell display 2560x1440@60hz.
Yes, Chromebook Plus drives the built-in screen plus two external screens - caveat Chromebook Plus limitation, the only option for the last display in the chain is Duplicate, not Extend.
