ubuntu black screen after login

System: Ubuntu 20. dokmee login 04; Gnome 3. dokmee login 36 4; GDM; XOrg; No Nvidia Graphics Details: Right before this happened I enabled fractional scaling and set it to 125% Then I rebooted which is when the problem occurred for the first time I can log in to ubuntu on wayland So I suspect that the problem is with XOrg