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Laptop capable of DP-MST (daisy chaning) on Linux?
Guppy 15 May 2020 at 7:24 am UTC

Does anyone have a working setup using DP-MST from their lap top ? if so what chipset are you using?

Been eying the new Ryzen 7 4xxx laptops, but I'd rather not spend money on it unless it works ( kinda doubt they will take it back if I've replaced the factory default windows 10 ;) )

I spendt hours trying get an old Lenovo T440s to work with my dual Dell U2415 's I discovered that the "Link Training Unsuccessful" and "fifo underrun on pipe B" (and C) has been around for atleast 4 years for the i915 driver and with no fix. most anoyingly it *sometimes* works, but mostly the laptop thinks it's working and the monitors says "no signal" - even if I connect it to just one monitor with DP 1.2 disabled. oh yeah and having the DP cable connected at boot means ubuntu 20.04 never gets past the boot spinner even if you disconnect the cable :S

Last edited by Guppy on 15 May 2020 at 7:24 am UTC

damarrin 15 May 2020 at 7:51 am UTC

I have nothing to say on topic, but if you're worried you may want to return it, you should clone the drive with e.g. clonezilla before you even turn on the computer for the first time and just clone it back if needed.

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