Comment 10 for bug 1268184

I don't know what you did, I don't think we have the same configuration or that the problems even relate (different computer, different GPU, etc).

If you want to reverse your installation just either boot 'recovery' and remove the packages that are in conflict (or try the standard boot with 'nomodeset' option added). I never got Plymouth stuck, I either have nouveau working, or minimal X if nvida is the only driver installed when nouveau is blacklisted.