Michał Gapiński

If you want to rule out power try a bottom with a commander. You can connect the power header to GPIO and it'll offload the ribbon cable. I doubt that's...

ASPM could also be disabled with a dtoverlay; I'll see if I can figure it out tomorrow. I don't know what's wrong with the aspm implementation though, I also saw...

@geerlingguy I added a kernel patch that disables ASPM without having to use any overlays: https://github.com/raspberrypi/linux/pull/6229 If you ever stumble upon a drive that is throwing errors like this in...

@geerlingguy check the revision of the ASMedia chip itself (date code). Some older revisions are not playing well with the Pi 5.

Chips made in 2024 (Q2+) are OK. I don't know if it applies to the Gen 3 switch as well, but some changes were made to the Gen 2 ones...

If the drive you have doesn't work without the switch (on a HatDrive Bottom V3 or newer) it won't work. On your lspci it seems like the endpoint is detected...

It's just the mix of specific devices with specific revisions on specific firmware. Everyone is improving constantly and you can exactly OTA internal firmware / silicon changes. Generally speaking manufacturers...