Thunderbolt is abnormal

[Isaac594224]

I have a MacBook Pro 2019 (with Intel chip)
With Ubuntu 24.04 for T2, the Thunderbolt interface does not work properly and cannot recognize external ssd (with JHL7440) and EGPU (RX6600).
AMD drivers have already been installed. Using apt update and apt upgrade commands still does not work, but those two devices works fine on macOS, and it works fine on another laptop's Ubuntu system. Do I need to set up the thunderbolt driver separately?

[dwiaziprasetya]

I've experienced the same issue and haven't found a definitive solution yet. However, I found simple soultion. You need to connect your external SSD before turning on your Mac.

So, connect the external SSD first, then turn on your Mac.

The external SSD will then be recognized automatically.

[deqrocks]

For OP, looks to me like pcie_ports=native is missing in the commandline or acpi_osi=!Darwin is present.