Shit. Big Nvidia breakage on 4.4.172.
It is this: https://www.linuxquestions.org/questions/slackware-14/kernel-4-4-172-on-slack64-and-nvidia-4175647404/
Of course this happens on a day I do not have my fucking laptop. Nobody's fault but my own.
It's possible Nvidia will not fix this at all for legacy cards.
sully.site is one server in the network