Originally Posted by vfulco
A little more digging indicates the working Xorg.conf is being overwritten when rebooting and it eliminates the BusID (PCI:07:00:0) and Screen (1) assignment in Device 0 but leaves it for Device1.
So: open livna-config-display
and tell it to STOP DOING THAT!
I.E.: un-check the box that allows livna-config-display to auto-edit xorg.conf.
Please search the forums, as this is a "feature" of the RPMFusion NVidia driver package suite.