Keyboard not working until I unplug&replug it after booting

So after booting, my keyboard lights don't turn on and no input is detected. The problem goes away after I unplug&replug the keyboard.

This started happening a couple of days ago, and I have done nothing with the computer that would obviously cause such behaviour. No major installs, no huge updates, no changed settings. Ihad the same problem with Windows like two times before moving over a couple months ago, but now it happens after every startup. Any help is appreciated!