Still seeing this on 5.0.8 mainline. Connecting a USB device after a few hours results in this:
[17093.624705] usb 3-1.1: USB disconnect, device number 7 [17144.801167] usb 3-1.1: new high-speed USB device number 8 using xhci_hcd [17145.201116] usb 3-1.1: New USB device found, idVendor=04e8, idProduct=6860, bcdDevice= 4.00 [17145.201119] usb 3-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [17145.201121] usb 3-1.1: Product: SAMSUNG_Android [17145.201123] usb 3-1.1: Manufacturer: SAMSUNG [17145.201124] usb 3-1.1: SerialNumber: REDACTED [17147.966175] usb 3-1.1: USB disconnect, device number 8 [17153.161110] xhci_hcd 0000:0e:00.0: xHCI host not responding to stop endpoint command. [17153.169934] xhci_hcd 0000:0e:00.0: xHCI host controller not responding, assume dead [17153.169953] r8152 4-1.2:1.0 eth0: Tx status -108 [17153.169954] r8152 4-1.2:1.0 eth0: Tx status -108 [17153.169955] r8152 4-1.2:1.0 eth0: Tx status -108 [17153.169957] r8152 4-1.2:1.0 eth0: Tx status -108 [17153.169980] xhci_hcd 0000:0e:00.0: HC died; cleaning up [17153.170181] usb 3-1: USB disconnect, device number 2 [17153.170187] usb 4-1: USB disconnect, device number 2 [17153.170189] usb 4-1.2: USB disconnect, device number 3 [17153.170760] usb 3-1.4: USB disconnect, device number 5 [17153.193302] bridge-eth0: disabling the bridge on dev down [17153.193426] bridge-eth0: down [17153.194899] bridge-eth0: detached [17153.194939] /dev/vmnet: open called by PID 1961 (vmnet-bridge) [17153.194944] /dev/vmnet: hub 0 does not exist, allocating memory. [17153.194956] /dev/vmnet: port on hub 0 successfully opened [17153.194962] bridge-wlan0: device is wireless, enabling SMAC [17153.194964] bridge-wlan0: up [17153.194965] bridge-wlan0: attached [17153.277696] usb 3-1.5: USB disconnect, device number 3 [17153.278118] usb 3-1.6: USB disconnect, device number 4 [17153.393326] userif-3: sent link down event. [17153.393328] userif-3: sent link up event. Daisy-chained DP monitors connected to the dock still work, reconnecting the dock fixes it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766076 Title: USB over thunderbolt turns off every once in a while To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1766076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs