[ 2215.304146] usb 2-2: USB disconnect, device number 4
[ 2216.908060] usb 2-2: new full-speed USB device number 5 using uhci_hcd
[ 2217.106086] usb 2-2: New USB device found, idVendor=2a03, idProduct=0043
[ 2217.106098] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=220
[ 2217.106106] usb 2-2: Product: Arduino Uno
[ 2217.106113] usb 2-2: Manufacturer: Arduino Srl            
[ 2217.106120] usb 2-2: SerialNumber: 85439303233351909112
[ 2217.109221] cdc_acm 2-2:1.0: ttyACM0: USB ACM device
[ 2487.393174] perf samples too long (2505 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[ 3257.200831] systemd-hostnamed[5474]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!