FW13 7840U not detecting TB hub (Debian 13 with 6.19.x backported kernel)

I recognise those boot ‘errors’ but they don’t stop my FW 13 AMD 7040-series from working with my 40gbps Thunderbolt 3 cables.

Mar 24 09:12:55 fw13 kernel: ucsi_acpi USBC000:00: unknown error 0
Mar 24 09:12:55 fw13 kernel: ucsi_acpi USBC000:00: GET_CABLE_PROPERTY failed (-5)

You might also need to check the release thread for the 3.18 BIOS on Framework 13 AMD 7040-series – a number of people are having isues with peripherals on USB4 docks at boot. It’s why I’ve not updated beyond BIOS 3.17, you might want to roll back to 3.17.