None of the USB ports support communication with connected devices, such as USB storage or extermal mouse, although the ports appear to be powered.
Assume problem is related to the following error in the journald log:
|26.12.21 16:45|kernel|xhci_hcd 0000:03:00.4: xHCI host controller not responding, assume dead|
|26.12.21 16:45|kernel|xhci_hcd 0000:03:00.4: HC died; cleaning up|
I would welcome any advice how to fault find and correct this problem?