Plymouth not working -- need a bit of help

@ElvishJerricco The behavior appears to be more a hang – than a crash. That is, the screen goes blank… and eventually if I do ‘Ctrl+Alt+del’ – it reboots.

@ElvishJerricco I think I may have figured out what is was causing the ‘hang’. I’ve got auto login setup; turning it off seems to have fixed the issue.

With auto login …

  services.xserver.enable = true;
  services.xserver.displayManager.gdm.enable = true;
  services.xserver.displayManager.autoLogin.enable = true;
  services.xserver.displayManager.autoLogin.user = "talos";
  services.xserver.displayManager.job.preStart = "sleep 5";
  services.xserver.desktopManager.gnome.enable = true;
  services.xserver.videoDrivers = [ "nvidia" ];
  hardware.opengl.enable = true;
  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;

Without auto login …

  services.xserver.enable = true;
  services.xserver.displayManager.gdm.enable = true;
  #services.xserver.displayManager.autoLogin.enable = true;
  #services.xserver.displayManager.autoLogin.user = "talos";
  #services.xserver.displayManager.job.preStart = "sleep 5";
  services.xserver.desktopManager.gnome.enable = true;
  services.xserver.videoDrivers = [ "nvidia" ];
  hardware.opengl.enable = true;
  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;

Any ideas why?

I’m now recalling that when I initially setup auto login – that this odd services.xserver.displayManager.job.preStart = "sleep 5"; had to be set, otherwise a hang would occur.

I set auto login weeks ago… and just re-remembered this issue.

@ElvishJerricco Thank you very much for your quick responses and help. Very much appreciated.