On 03/28/2013 05:08 PM, Alfred von Campe wrote: > I have a user who wants to have 4 monitors attached to his CentOS 6.4 system. I know that you > can't use both on-board video and a PCI video card at the same time, but what about two PCI > video cards? The system seems to recognize them as shown by the lspci -v output below, but > I can't get Xorg to use the second card. Has anyone done this? If so, what is the trick to > get it to work? > > Alfred > It appears you are running the open-source nouveau drivers. I'm running dual monitors, albeit on a single nVidia card, but I'm using the nVidia packages from the elrepo repository. Look at http://elrepo.org/tiki/kmod-nvidia for more details. Just my $.02 -- Jay Leafey - jay.leafey at mindless.com Memphis, TN