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Thunderbolt support under Linux for external displays

I recently got myself an MSI Cubi B206 mini computer after looking at major specs.

Question 1:

I overlooked the number of HDMI ports on the back. I have two monitors and I only got one port on the model I chose. I was thinking about using one of those cheap HDMI adapters that connect to USB 3 ports. I got one that was working fine, but is now unused.

Talking with other geeks, I also thought I could use one of two Thunderbolt ports I have on the back. I also understand there are cables that will go directly from the Thunderbolt USB-C connector to the HDMI connector.

Looking at the PDF doc of my specific model, I see that I have two ports that "Support up to 8K display." Those are identified as "Thunderbolt 4 Port (USB Type-C)"

Before spending more money on this, I was looking to see how good is the support of Thunderbolt for external displays under Linux. I use Linux Mint 22.3 right now.

Question 2:

After some challenges in getting Linux Mint installed, mainly caused by the setup for the start on USB port, I got Mint 22.3 installed. However, when shutting it down, be it form the menu or the command line, reboot or shutdown, I get error message about PCI Bus error ("Recoverable") scrolling forever, never turning the device actually off. I do not have the exact port numbers in note. When I turn it off by the power button and restart it, everything is fine, but that's a bugger.

Any idea what setting I should change, either in the BIOS setup

Thanks !


Jean-Francois Messier



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