Gnome 3 and separate x screen

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http://forums.fedoraforum.org – Hi guys, I'm new user of Linux and fedora and I'm very happy with it but I have a problem with gnome 3 and separate x screen, this always load in fallback mode, I tried with kde and xfce spins and this work fine, any tip to solve this issue in gnome 3?. I have a laptop Samsung R430 with nvidia 310m and hdmi output to tv lcd aoc 42". In the spins work great but fail in gnome 3. Thanks for your time and help. PS: sorry for my english, this is not my my language. Enviado desde mi GT-S5830 usando Tapatalk 2 (HowTos)