If you successfully installed the Leap Motion driver/SDK, we can start the device by following these steps:

1. Plug the Leap Motion controller into a USB port; you can plug it into USB 3.0, but 2.0 is fine too.
2. Open Terminal and execute the dmesg command to verify that the device is properly detected on Ubuntu:

          $ dmesg

3. It may give you the following result if it's detected properly.

If you are getting this message, you're ready to start the Leap Motion controller manager.