[Solved] From game everywhere

I needed a power supply for my laptop emergency, so I took it. I just received there in 30 minutes. The packaging is neat and fast delivery. The problem is that the first connection, the 220V cable was loose, so I pushed a little and moving a bit I ended up stalling. But once settled this problem is the connector of the computer to play. As soon as I move the load stops with that that entails (display fades, little lag of a second, small noise , ...). I already have two chargers for this computer, and here I must admit I'm disappointed. I hope that this is an isolated problem.

edit: After several attempts, I finally found a solution. Inside the connector (that of the power supply) there in two metal fins. With a toothpick, I brought them gently toward the center. The contact is now good. I hope that it will help others