That was when the USB-power/HDMI/DP adapter was plugged in the other side. The
relevant log entries from lower down are:
```
[622581.193592] usb 3-8: new high-speed USB device number 71 using xhci_hcd
[622581.342507] usb 3-8: device descriptor read/all, error -71
[622581.469590] usb 3-8: new high-speed USB device number 72 using xhci_hcd
[622581.597623] usb 3-8: device descriptor read/64, error -71
[622581.833660] usb 3-8: device descriptor read/64, error -71
[622581.941757] usb usb3-port8: attempt power cycle
[622582.601580] usb 3-8: new high-speed USB device number 73 using xhci_hcd
[622582.622469] usb 3-8: device descriptor read/8, error -71
[622582.750809] usb 3-8: device descriptor read/all, error -71
[622582.877604] usb 3-8: new high-speed USB device number 74 using xhci_hcd
[622582.898543] usb 3-8: device descriptor read/8, error -71
[622583.027695] usb 3-8: unable to read config index 0 descriptor/all
[622583.027700] usb 3-8: can't read configurations, error -71
[622583.027760] usb usb3-port8: unable to enumerate USB device
```
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/1888639
Title:
Microsoft LifeCam Cinema reports "device descriptor read/all, error
-71" on 20.04 with USB-C adaptor
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