Re: FC6 3 monitors w/ 2 video cards
No it is not disabled. I know this because this exact same configuration worked under Windoze XPee. I find it hard to believe that this worked flawlessly under windoze and will not work under Linux.
As to the question of What does "only the device set as primary in BIOS works" mean exactly? what i mean is my bios allows me to set whether the on-board or an-add-on card is the primary video device