I connect NEOv2 with CUAV. I would monitor position by MissionPlanner. Althogh I could monitor correct position, I couldn't control CUAVv5. Then MavLink message raised. I doubted USB control, so I execute below command.
sudo usermod -a -G dialout $USER
However nothing solved. I didn't think Icould find the couse.
As I challenge other method, I decided installing QGrounControl for ubuntu. Its data is obviously and simple. This app is suitable for beginners.