I need help, I bought a um773 lite and I have a thunderbolt 3 to 2 then to FireWire adapters and I can’t get it to work with the USB4 port under linux. Idk what bios setting to change. I have done everything I can on the Linux side.
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Wish I could help, all I can say is, FireWire?!? What year is it?!? Lol
yeah is a dead standard, but i got a good audio interface from 2003 dirt cheap off ebay.
I don’t have much experience with Firewire sorry but with the double adapters in play, I believe you’re facing a PCIe tunneling security issue. Check your BIOS to see if there are any Thunderbolt settings, or settings to allow or disallow PCIe tunneling. The next thing to check is whether the Thunderbolt devices are authorized in Linux.
This page should help you with that: https://www.kernel.org/doc/html/v5.12/admin-guide/thunderbolt.html
Also worth checking this page: https://wiki.archlinux.org/title/Thunderbolt
Have you tried booting with the dongle connected ? No hot swap
