Gentoo Archives: gentoo-user

From: Dom Rodriguez <shymega@×××××××××××.uk>
To: gentoo-user MAILING LIST <gentoo-user@l.g.o>
Subject: [gentoo-user] USB-C PD delivery & Lenovo USB-C hub.
Date: Sun, 22 Sep 2019 17:01:56
Message-Id: 20190922170142.yyjqk4o5pzu4nsh5@cyberdemon
1 Hello,
2
3 I've got an Lenovo Thinkpad X270 laptop, with USB-C support. I ordered an Lenovo
4 USB-C hub from Amazon the other day, and it arrived today. It [the hub] is
5 recognised by the kernel for USB, but not for power delivery (PD), via ACPI.
6
7 Oddly enough, when I plug the USB-C cable from the mains adapter directly to the
8 USB-C port, ACPI recognises it fine - so I've narrowed it down to a driver
9 issue.
10
11 I've tried using the hub on my Thinkpad 13" on both Windows and Linux (Arch,
12 specifically; Gentoo isn't on there at the moment.), and its recognised fine.
13 Therefore I do not believe the hub *itself* is faulty.
14
15 In terms of diagnostic information, I'm not sure where to start, so if anyone
16 needs certain information to help with the issue, please let me know, and I'll
17 do my best to email it.
18
19 I'm running gentoo-sources-5.3.1 for the kernel.
20
21 Any ideas? Thanks :-)
22
23 --
24 Sincerely,
25 Dom Rodriguez (shymega).

Replies

Subject Author
Re: [gentoo-user] USB-C PD delivery & Lenovo USB-C hub. Dom Rodriguez <shymega@×××××××××××.uk>