How to configure Nvidia on Laptop DELL Inspiron N7110?

view story

https://bbs.archlinux.org – I'm trying to configure my Nvidia card  running:nvidia-settings but I get the message:You do not appear to be using the NVIDIA X driver.  Please edit your X configuration file (just run `nvidia-xconfig` as root), and restart the X server.My laptop has 2 cards:lspci|grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev a1)I install the drivers with:pacman -S nvidiaHere is the content of /etc/X11/xorg.conf.d/20-nvid (HowTos)