How to solve "Stopping User Manager for UID 121" error after installing Nvidia drivers on Ubuntu?

I'm on ubuntu 17.10. Got uid 121 after installing nvidia tested proprietary drivers. After purging nvidia-* finally solve uid 121. Later install not tested driver from same file, there's no uid 121, but drivers doesn't work at all. Can i have both working drivers and no uid 121? Geforce gtx 640m