Ubuntu 20.04 upgrades breaks keyboard/mouse

I was using 19. Ubuntu recommended an update. I clicked all the buttons and let it do its thing. After the update restarted the computer, I tried using the mouse. Nothing. I tried the keyboard. Nothing. A couple manual restarts later, I get the mouse to work for half a second before it goes dead. I have no idea how to fix this type of problem. I suppose I could try a fresh install in the BIOS, but is there a possibly less extreme method? I spent a lot of time setting my environment up and I don't want to lose it.