Monitor not connecting to Mantiz Saturn Pro
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Monitor not connecting to Mantiz Saturn Pro  


New Member
Joined: 2 years ago

Hi Everyone 

This is my first post so be nice lol...

Ive had the Mantiz Saturn for just over a week now and the performance is amazing alongside my Mac mini (2020). Have it connected to the BenQ PD3220 4K display and the Radeon RX580 is just the business for me. But I have a wee niggle. If I reboot my Mac mini the monitor WILL NOT display the Mac mini via the DisplayPort connection from the eGPU - the only way is to boot up with the TB3 connect from the Mac mini then disconnect the TB3 cable so that the DP / eGPU connection fires up - What am I doing wrong as this is very frustrating

Mac Mini (2020) i7 | 64Gb | Benq PD3220 4K Monitor | Mantiz Saturn Pro2 | Sapphire AMD RX580 | Logitech MX Keys & MX Master 3

New Member
Joined: 1 year ago

Did you figure this out? having an issue also.


To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.


Famed Member Moderator
Joined: 5 years ago

@kel_mitchell, read the fine print at the bottom of this page:


"Desultory reading is delightful, but to be beneficial, our reading must be carefully directed." — Seneca

Author: kryptonitepurge-wranglertbt-flashpurge-nvdaset-eGPU
Insights Into macOS Video Editing Performance
Launching Apps on Specific (e)GPUs on macOS
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Master Threads:
2014 15-inch MacBook Pro 750M
2018 15-inch MacBook Pro

2019 13" MacBook Pro [8th,4C,U] + RX Vega 64 @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.14.6 & Win10 [build link]