Just a quick questions: Do i need Nvidia drivers reinstalled when 15.1 .2 .3 comes out, or it must be done only for a full release upgrade? If yes what command i must run? I rather ask here then look for some random examples.. I would appreciate if someone who uses Nvidia card or anyone who knows exact commands how to remove nvidia drivers before major upgrade, and install them again after upgrade, avoiding black boot screen (crucial). The key thing why i am asking this is the drm kmod, which can change upon major upgrade release..