Curious about this dmesg: USB device reset

[oshunluvr]

[Thu Jan 19 08:03:27 2023] usb 1-1.4: reset high-speed USB device number 5 using xhci_hcd
[Thu Jan 19 08:03:27 2023] usb 1-1.4: 3:1: cannot get freq at ep 0x84
[Thu Jan 19 08:03:27 2023] usb 1-1.4: 3:1: cannot get freq at ep 0x84
[Thu Jan 19 08:04:59 2023] usb 1-1.4: reset high-speed USB device number 5 using xhci_hcd

​

I've done sub searching and not getting any real answers. One piece of advice was to replace the motherboard <rolls eyes>.

If I read that right, it's the port that connects to my UPS via USB, but I'm not 1000% sure.

USB Bus 1, device 1-4.

But lusb -t produces this:

/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 5, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 4: Dev 5, If 1, Class=Video, Driver=uvcvideo, 480M
|__ Port 4: Dev 5, If 2, Class=Audio, Driver=snd-usb-audio, 480M
|__ Port 4: Dev 5, If 3, Class=Audio, Driver=snd-usb-audio, 480M
​

I'm still looking into it...

[Snowhog]

If I read that right, it's the port that connects to my UPS via USB, but I'm not 1000% sure.

Unplug it for a bit and see if these messages stop being recorded.

[oshunluvr]

I noticed many of these messages in my previous dmesg output so I did a reboot and now just this message:

usb 1-1.4: reset high-speed USB device number 5 using xhci_hcd

was repeated 90 minutes after the previous one. It been 2 and a half hours since the last one, so I'm watching but changing nothing at this point.

I guess this:
Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
is the USB connection to the UPS, but not sure yet.

A little more web searching has revealed it may be related to USB settings in the BIOS vs. kernel drivers.