tail /var/log/syslog
Oct 24 22:35:18 UbuntuPC kernel: [ 3545.410786] usb 2-1.1: new high-speed USB device number 12 using ehci-pci
Oct 24 22:35:18 UbuntuPC kernel: [ 3545.504584] usb 2-1.1: New USB device found, idVendor=22b8, idProduct=2e62
Oct 24 22:35:18 UbuntuPC kernel: [ 3545.504593] usb 2-1.1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
Oct 24 22:35:18 UbuntuPC kernel: [ 3545.504597] usb 2-1.1: Product: Moto Razr M
Oct 24 22:35:18 UbuntuPC kernel: [ 3545.504601] usb 2-1.1: Manufacturer: motorola
Oct 24 22:35:18 UbuntuPC kernel: [ 3545.504605] usb 2-1.1: SerialNumber: 99000200923255
Oct 24 22:35:21 UbuntuPC kernel: [ 3548.864860] usb 2-1.1: reset high-speed USB device number 12 using ehci-pci
Oct 24 22:35:21 UbuntuPC kernel: [ 3548.957119] usb 2-1.1: device firmware changed
Oct 24 22:35:21 UbuntuPC kernel: [ 3548.957594] usb 2-1.1: USB disconnect, device number 12
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.160644] usb 2-1.1: new high-speed USB device number 13 using ehci-pci
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.254579] usb 2-1.1: New USB device found, idVendor=22b8, idProduct=2e24
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.254589] usb 2-1.1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.254595] usb 2-1.1: Product: Moto Razr M
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.254599] usb 2-1.1: Manufacturer: motorola
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.254604] usb 2-1.1: SerialNumber: 99000200923255
Oct 24 22:35:22 UbuntuPC mtp-probe: checking bus 2, device 13: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1"
Oct 24 22:35:22 UbuntuPC mtp-probe: bus: 2, device: 13 was not an MTP device
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.801793] usbcore: registered new interface driver cdc_ether
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <warn> (usb0): failed to find device 4 'usb0' with udev
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> (usb0): new Ethernet device (carrier: OFF, driver: 'rndis_host', ifindex: 4)
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.808313] rndis_host 2-1.1:1.0 usb0: register 'rndis_host' at usb-0000:00:1d.0-1.1, RNDIS device, 52:ee:2d:25:28:8c
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.814622] usbcore: registered new interface driver rndis_host
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.817310] rndis_host 2-1.1:1.0 enx52ee2d25288c: renamed from usb0
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> (usb0): interface index 4 renamed iface from 'usb0' to 'enx52ee2d25288c'
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/net/enx52ee2d25288c, iface: enx52ee2d25288c)
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> device added (path: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/net/enx52ee2d25288c, iface: enx52ee2d25288c): no ifupdown configuration found.
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> (enx52ee2d25288c): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> (enx52ee2d25288c): link connected
Oct 24 22:35:22 UbuntuPC kernel: [ 3549.862832] IPv6: ADDRCONF(NETDEV_UP): enx52ee2d25288c: link is not ready
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> (enx52ee2d25288c): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Oct 24 22:35:22 UbuntuPC NetworkManager[766]: <info> Device 'enx52ee2d25288c' has no connection; scheduling activate_check in 0 seconds.
Oct 24 22:35:25 UbuntuPC ModemManager[754]: <info> Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1': not supported by any plugin
lsusb
Bus 002 Device 011: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
Bus 002 Device 009: ID 1c4f:0026 SiGma Micro Keyboard
Bus 002 Device 008: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 002 Device 013: ID 22b8:2e24 Motorola PCS
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0b05:1788 ASUSTek Computer, Inc. BT-270 Bluetooth Adapter
Bus 001 Device 003: ID 13d3:5120 IMC Networks
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub