FW16 | AI 370HX | CachyOS | Razer Core X (tb3) not detected

Has anyone managed to get a TB3 device recognised successfully on a tb4 port?

II plug into 1/4 my FW16 charges from the eGPU, but the enclosure is not recognised and the handshake fails, if I plug 2/5 it recognises it as a Razer Core X but obviously can;t negotiate a TB3 connection.

I’ve set up a udev rule for authorisation, and tried the battery disconnect and reboot thing.

There’s lot’s going on - but the most consistent error is:

[ 763.026003] ucsi_acpi USBC000:00: UCSI_GET_PDOS failed (-95) [ 767.291129] usb 3-1.4.1.4: reset high-speed USB device number 14 using xhci_hcd

Has anyone got any inspiration?

I’ve successfully used a Razer Core X on my FW 16, but similarly I also had significant issues getting a reliable connection. It turned out that my cable (the one that came with the unit I bought used) was bad, and a lot of my issues went away after replacing that. I had bought the cable for something else and just tried it on a whim, otherwise I would’ve likely never found out. I’d suggest if you’ve got $10 to spare, give another cable a shot.

In addition to that, I’ve also found that one of my graphics cards does not play nice with the eGPU at all (an RTX 3080ti by MSI) whereas my FE RTX 3070ti works much more reliably. That’s probably less helpful though.

I don’t recall having to do anything weird configuration wise to get it working on Linux, though I definitely remember doing a number of troubleshooting things prior to replacing the cable.

I haven’t used my eGPU for over a year now though, because sometimes the performance is worse than the RX 7700s, or worse than the integrated 780m gpu, and using an eGPU prevents me from being able to easily unplug and move the device while a game is running.

Fun thing for me is it’s all confirmed working on the same version of the kernel, same os - different chip set though - on my old laptop.

Annoying bug to squash as it seems to be hardware or firmware related.

Ah, that is unfortunate. I had the same issues on my Thinkpad T470 as my FW 16, so I think we had different scenarios as you suggested.

A lot of nuggeting about, with kernels and using a shorter older tb cable sorted it. Go figure…

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Your post is giving my post nightmares, lol!
FPS loss when gaming on external monitor - Framework Laptop 16 - Framework Community

Kidding aside, this is sick.

Not a gamer, luckily, so FPS is just about the last thing I care about.

I’ve never liked the 1 massive monitor thing, but 5 screens makes coding, doing functional work and presenting/demoing the results on teams (I’m an ERP consultant) so much easier.

Embrace the pixels…

As someone who’s done both the single massive monitor, and the 5x monitor setups… there’s definitely a difference between the two.

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