Well, the nouveau support for my video card finally came. I was testing fedora and forgot to do the usual "nouveau.modeset=0" when suddenly it worked anyway ^^' Just tested "PRIME" and it work ! And the discrete video card shut itself after a moment when not used. It's just perfect. Woah.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko