I've tested with another dock (Dell 4-in-1) and it worked:
Code:
Feb 15 11:34:45 rodrigo-Inspiron-7348 kernel: [ 4670.765144] hid-generic 0003:045E:078C.000E: input,hidraw3: USB HID v1.10 Keyboard [LITE
Feb 15 11:40:05 rodrigo-Inspiron-7348 kernel: [ 4990.650090] usb 1-1: USB disconnect, device number 27
Feb 15 11:40:05 rodrigo-Inspiron-7348 kernel: [ 4990.650093] usb 1-1.2: USB disconnect, device number 28
Feb 15 11:40:05 rodrigo-Inspiron-7348 kernel: [ 4990.650095] usb 1-1.2.3: USB disconnect, device number 29
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.973968] usb 2-1: new SuperSpeed USB device number 2 using xhci_hcd
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.991177] usb 2-1: New USB device found, idVendor=2109, idProduct=0210
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.991181] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.991184] usb 2-1: Product: USB3.0 Hub
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.991186] usb 2-1: Manufacturer: VIA Labs, Inc.
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.993921] usb 1-1: new high-speed USB device number 30 using xhci_hcd
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.994066] hub 2-1:1.0: USB hub found
Feb 15 11:41:22 rodrigo-Inspiron-7348 kernel: [ 5067.994157] hub 2-1:1.0: 1 port detected
Feb 15 11:41:23 rodrigo-Inspiron-7348 kernel: [ 5068.325542] usb 1-1: New USB device found, idVendor=2109, idProduct=2210
Feb 15 11:41:23 rodrigo-Inspiron-7348 kernel: [ 5068.325545] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Feb 15 11:41:23 rodrigo-Inspiron-7348 kernel: [ 5068.325547] usb 1-1: Product: USB2.0 Hub
Feb 15 11:41:23 rodrigo-Inspiron-7348 kernel: [ 5068.325548] usb 1-1: Manufacturer: VIA Labs, Inc.
Feb 15 11:41:23 rodrigo-Inspiron-7348 kernel: [ 5068.326809] hub 1-1:1.0: USB hub found
Feb 15 11:41:23 rodrigo-Inspiron-7348 kernel: [ 5068.328002] hub 1-1:1.0: 4 ports detected
Feb 15 11:41:24 rodrigo-Inspiron-7348 kernel: [ 5069.767438] usb 2-1.1: new SuperSpeed USB device number 3 using xhci_hcd
Feb 15 11:41:24 rodrigo-Inspiron-7348 kernel: [ 5069.784132] usb 2-1.1: New USB device found, idVendor=17e9, idProduct=436f
Feb 15 11:41:24 rodrigo-Inspiron-7348 kernel: [ 5069.784135] usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Feb 15 11:41:24 rodrigo-Inspiron-7348 kernel: [ 5069.784137] usb 2-1.1: Product: Dell 4-in-1 Adapter
Feb 15 11:41:24 rodrigo-Inspiron-7348 kernel: [ 5069.784138] usb 2-1.1: Manufacturer: DisplayLink
Feb 15 11:41:24 rodrigo-Inspiron-7348 kernel: [ 5069.784139] usb 2-1.1: SerialNumber: 1510290124