On Mon, 12 Mar 2018, Cristian wrote:
> Hello,
>
> I'm working with Proxmox...
>
> dmesg:
> [ 202.138960] usb 1-1.2: clear tt 1 (0050) error -71
> [ 202.146341] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.150578] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.154828] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.159100] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.163328] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.163361] usb 1-1.2-port4: Cannot enable. Maybe the USB cable is bad?
> [ 202.167578] usb 1-1.2-port4: cannot disable (err = -71)
> [ 202.171828] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.176077] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.180326] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.184578] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.188828] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.188860] usb 1-1.2-port4: Cannot enable. Maybe the USB cable is bad?
> [ 202.193087] usb 1-1.2-port4: cannot disable (err = -71)
> [ 202.197329] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.201587] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.205830] usb 1-1.2-port4: cannot reset (err = -71)
Those messages are quite normal. They appeared when you unplugged the
hub that the Logitech mouse and Chicony keyboard were plugged into.
When that happened the computer was no longer able to communicate with
the hub, the mouse, or the keyboard -- that's why the errors were
logged.
The computer couldn't tell why the errors occurred until it received
the notification that the hub had been unplugged, which arrived about
0.07 seconds later.
Alan Stern
> [ 202.209077] usb 1-1.2: USB disconnect, device number 3
> [ 202.209080] usb 1-1.2.3: USB disconnect, device number 8
> [ 202.210079] usb 1-1.2-port4: cannot reset (err = -71)
> [ 202.254480] usb 1-1.2.4: USB disconnect, device number 5
> [ 202.370465] input: Chicony HP Elite USB Keyboard as
> /devices/pci:00/:00:1a.0/usb1/1-1/1-1.2/1-1.2.4/1-1.2.4:1.0/input/input13
> [ 202.406336] input: failed to attach handler kbd to device input13, error:
> -5
> [ 202.422338] sysrq: Failed to open input device, error -5
> [ 202.442336] input: failed to attach handler sysrq to device
> input13, error: -5
> [ 202.482335] input: failed to attach handler leds to device input13, error:
> -5
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