I remove the GTX from my system and installed antergos over the mainboard HDMI. All looks great!
Now I want to install the driver.
pacman -S nvidia pacman -S lib32-nvidia-utils
Section "Device" Identifier "Nvidia Card" Driver "nvidia" VendorName "NVIDIA Corporation" Option "NoLogo" "true" EndSection
Reboot and plug the GTX in.
Now I end up with a grey/black screen and a mouse wich is possible to move.
Do you have any ideas what i might have done wrong?