Date: Thu, 24 Jan 2019 21:51:23 +0100 From: Phil Norman <philnorm@gmail.com> To: usb@freebsd.org Subject: Diagnosing probable USB hardware failure Message-ID: <CAOa8eG5hnBYpuv3s8MR05UZNxN8n8W9=gPv%2BpKhFiARrvx0Lmg@mail.gmail.com>
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Hi. I have a Ryzen 3 1200, and Fatal1ty X370 mini-ITX motherboard. I've been suffering USB problems (details here: https://lists.freebsd.org/pipermail/freebsd-stable/2018-June/089155.html) for a long time, have tried a bunch of BIOS updates, including the latest for my motherboard. I've also gone through 3 versions of FreeBSD, and am now on 12/stable. In short, the only way I can have a stable USB system is by switching power off, then booting up from cold, and then not removing or inserting any USB devices. Kind of annoying. I'm pretty convinced this is not an OS issue (I had the same problem on NetBSD, and instability on Linux too, before I switched to FreeBSD). However, I have no idea how much of the USB hardware is implemented in the CPU, and how much in the motherboard. Can anyone help me with this question, or point me at diagnostic tools for figuring out where the problem is? I'd be *very* happy to solve this problem. Thanks in advance, Phil
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