Comment 7 for bug 1869138

Compare the kernel related usb logs between keyboard detected and not, all previous logs are no difference, it began difference only from. I personally thought it might not issues from kernel as it likes external device (keyboad) didn't report devices information back and from testing log it sees just 16% reboot were failed to detect keyboard.

no-keyboard:
Feb 25 20:56:06 13.639502] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed
*Feb 25 20:56:06 13.703568] usb usb1-port2: couldn't allocate usb_device
*Feb 25 20:56:06 13.769363] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.03
Feb 25 20:56:06 13.900828] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Feb 25 20:56:06 13.968612] usb usb2: Product: xHCI Host Controller
Feb 25 20:56:06 14.027356] usb usb2: Manufacturer: Linux 5.3.0-28-generic xhci-hcd
Feb 25 20:56:06 14.079505] usb usb2: SerialNumber: 0000:00:14.0

with-keyboard:
Feb 25 14:58:11 17.021871] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed
*Feb 25 14:58:11 17.021903] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.03
Feb 25 14:58:11 17.212935] usb 1-2: new low-speed USB device number 2 using xhci_hcd
Feb 25 14:58:11 17.220801] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Feb 25 14:58:11 17.220803] usb usb2: Product: xHCI Host Controller
Feb 25 14:58:11 17.220803] usb usb2: Manufacturer: Linux 5.3.0-28-generic xhci-hcd
Feb 25 14:58:11 17.220804] usb usb2: SerialNumber: 0000:00:14.0