After on IRC another fellow, had problems on install nVidia drives on
first installation and reboot, I also had a similar problem that make
me think. And I think I found the issue, instead try blacklist nouveau
on boot we should run:
dracut -f /boot/initramfs-$(uname -r).img $(uname -r)
xorg-x11-drv-nvidia package have blacklist-nouveau.conf  but just
install a new kernel nouveau enter in blacklist isn't it ? , so after
installing nVidia drives (for the first time) we should also run dracut
to generate initramfs without nouveau module isn't it ? anyway like
blacklist-nouveau.conf text says.
Conclusion we should/need update https://rpmfusion.org/Howto/nVidia
Sérgio M. B.