[Bug 262882] [13.1-RC5] usb disconnects repeatedly, losing all attached devices on that USB hub

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 01 May 2022 06:18:51 UTC

--- Comment #30 from Emanuel Haupt <ehaupt@FreeBSD.org> ---
Both mouse and keyboard are attached to a Level 1 KVM switch that is connected
via USB3 (not thunderbolt).

It happens immediately, 100% reproducible once xorg starts.

Here is how I collected the output:

- Added hw.usb.xhci.debug=16 to /etc/sysctl.conf
- Rebooted machine
- Made sure the KVM Switch is active on this machine
- System boots up and I have not even the chance to switch to console
- ssh into machine and collect output from /var/log/messages

Since this might be nvidia related, here is the driver I am using:


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