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xhci_hcd 0000:0e:00.0: xHCI host controller not responding, assume dead xhci_hcd 0000:0e:00.0: xHCI host not responding to stop endpoint command. Here's the dmesg output when the USB hub disconnects:Ģ79278.102701] xhci_hcd 0000:0e:00.0: ERROR unknown event type 15

I can restore functionality by instructing the xhci_hcd driver to unbind from the USB 3.0 Host Controller in the dock and to rebind to it using the commands:Įcho -n "0000:0e:00.0" > /sys/bus/ pci/drivers/ xhci_hcd/ unbindĮcho -n "0000:0e:00.0" > /sys/bus/ pci/drivers/ xhci_hcd/ bind I'm using a USB hub in the Dell TB16 (240W) connected to a Dell Precision 5520 using Thunderbolt 3.Įvery so often (can be several times in an hour if I'm really unlucky, some days it is less of a problem), the USB hub disconnects from the computer and the devices connected to it lose power and stop responding.ĭisconnecting and reconnecting the USB cables has no effect.