Re: (EE) Failed to find required symbol 'dixLookupResource'
I don't have the regular Xorg one, unfortunately, but I have a gdm one that has the same error in it. There is mention of something new in the Fedora changelog starting with .901 -- re-enabling the Xdmx extension, perhaps it's coming from that?
Just saw your update, so I'll keep this posted anyways.. there is some extra bits in there while I was trying to diagnose the problem (double extension loads and such) that you can ignore. If you need anything more, let me know!