[Error 306 and 400 help!]

I followed all the instructions and unfortunately, i am still here.

After reading comments and forum, i found that the problem might be with the way the graphic card is connected in my Alienware 17 R4.

I tried :

1. hdmi to hdmi : I always get error 306 and error 400. I reboot and try to find how to change the configuration in Nvidia control panel.

2. mini DP to mini DP : Because i found a guy on the web with an alienware and he succeed with the mini DP cable. But here I always get error 208. No HMD detected. the light turns red.

 

What do i have to do ? If you can help me and tell me if there is a solution with the alienware 17 R4.

Do I have to try a mini Displayport through adapter to hdmi ? 

(Fortunately my desktop works fine, but I was hoping to have a mobile solution as well.)

[Error 306 and 400 help!]

same problem. Alienware 17 R4 with GPU NVIDIA GeForce GTW 1080 and Intel HD Graphics 630.