Cintiq Companion 2 Desktop mode Black screen but stylus work !?

[AlCatIa89]

Hello

I have recently find my 2in1 cable.

But when i plugged my CC2 my screen turn black but my stylus work (i can move the cursor and draw whith it the pressure work well)
When i tried to found the problem i found some weird things. The wacom driver recognize the CC2 and when i "click" on "screen parameter" i have a message "Compatible display device not found" or i tried too see if Windows 10 have a fix problem option. My computeur don't appear the Cintiq.

I have:
-restart my computer 5 times
- tried change the plugs (especially the USB)
-uninstall and reinstall the wacom driver

i'm on Windows 10 and my wacom is connect whith a an HDMI/DP adapter

I hope you can help me. Thank you in advance