x11 not working on cygwin

[noobs guid to marsterrace]

I am fed up with the default Windows interface so I decided to install Cygwin and run a gnome shell on startup. when the installation was done I went into Cygwin and started x with this command 

xinit gnome-session 

and i got this error the shell shortly closed  

and this is the out put log

 i think it has something to do with display drivers but I really don't know 

when I was installing Cygwin it came up with an error  but stupidity I pressed ok without reading it so hepl