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

Framework Laptop 13 Linux
1

Which Linux distro are you using?

Debian

Which release version?

13 with backported kernel

Which kernel are you using?

6.19.6+deb13-amd64

Which BIOS version are you using?

03.18

Which Framework Laptop 13 model are you using? (AMD Ryzen™ AI 300 Series, AMD Ryzen™ 7040 Series, Intel® Core™ Ultra Series 1, 13th Gen Intel® Core™ , 12th Gen Intel® Core™, 11th Gen Intel® Core™)

FW13 7040-series

When I plug in a Thunderbolt 3 dock using a 80Gbps cable, nothing comes up either in boltctl or dmesg -w. This was also a problem before I switched to the Forky backported kernel, but was as far as I recall less of an issue with Bluefin.

I do get this though on boot:
[] ucsi_acpi USBC000:00: unknown error 0
[] ucsi_acpi USBC000:00: GET_CABLE_PROPERTY failed (-5)

Power can also cut out from the charger sometimes when using the machine, but I don’t know if this is in any way related (this occurs over multiple cables and USB wall adapters).

Cheers.

2

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.