Many thanks again.
May 3 17:25:17 n-desktop kernel: [ 1693.008451] usb 1-1.2: new low speed USB device using ehci_hcd and address 8May 3 17:25:17 n-desktop kernel: [ 1693.108414] usb 1-1.2: configuration #1 chosen from 1 choiceMay 3 17:25:18 n-desktop kernel: [ 1693.277980] input: 3Dconnexion SpaceNavigator as /devices/pci0000:00/0000:00:13.3/usb1/1-1/1-1.2/1-1.2:1.0/input/input7May 3 17:25:18 n-desktop kernel: [ 1693.278156] generic-usb 0003:046D:C626.0005: input,hidraw1: USB HID v1.10 Multi-Axis Controller [3Dconnexion SpaceNavigator] on usb-0000:00:13.3-1.2/input0