On Sunday, 22 September 2019 18:06:50 BST Dom Rodriguez wrote: > ... Of course, it _would_ help, if I had provided the link to the hub > itself! > > https://www.amazon.co.uk/gp/product/B07919ZNB4 > > :) > > On this date - Sun, Sep 22, 2019 at 06:01:42PM +0100, Dom Rodriguez wrote: > > Hello, > > > > I've got an Lenovo Thinkpad X270 laptop, with USB-C support. I ordered an > > Lenovo USB-C hub from Amazon the other day, and it arrived today. It [the > > hub] is recognised by the kernel for USB, but not for power delivery > > (PD), via ACPI. > > > > Oddly enough, when I plug the USB-C cable from the mains adapter directly > > to the USB-C port, ACPI recognises it fine - so I've narrowed it down to > > a driver issue.
I assume you have enabled the USB-C drivers in the kernel and also PCI hotplug? https://wiki.gentoo.org/wiki/USB/Guide#USB_Type-C_and_Thunderbolt > > I've tried using the hub on my Thinkpad 13" on both Windows and Linux > > (Arch, specifically; Gentoo isn't on there at the moment.), and its > > recognised fine. Therefore I do not believe the hub *itself* is faulty. > > > > In terms of diagnostic information, I'm not sure where to start, so if > > anyone needs certain information to help with the issue, please let me > > know, and I'll do my best to email it. > > > > I'm running gentoo-sources-5.3.1 for the kernel. > > > > Any ideas? Thanks :-) I don't have such a device to advise on the specifics, but look at dmesg, lspci -knn, lsusb to see if the device is recognised, or if any errors on missing components are reported. -- Regards, Mick
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