SDDM gets black screen after logout from Hyprland UWSM

Help
1

So basically i was using UWSM with hyprland for few days and i did not able to fix this issue whenever i try to logout i get stuck at SDDM’s black screen or SDDM does not come. Later i had to do TTY for restart. even using the command uwsm stop did not helped anything over hyprctl dispatch exit i just get black screen.
How did i have enabled? Here is the config. And please let me know about how i can fix it.

  # Hyprland.
  programs = {
    # waybar.enable = true;
    hyprland = {
      enable = true;
      xwayland.enable = true;
      withUWSM = true; 
      # package = inputs.hyprland.packages.${pkgs.system}.hyprland;
    };
  };

{
  pkgs,
  lib,
  inputs,
  ...
}: {
  imports = [
    inputs.sddm-sugar-candy-nix.nixosModules.default
  ];
  nixpkgs = {
    overlays = [
      inputs.sddm-sugar-candy-nix.overlays.default
    ];
  };

  # Add UWSM
  programs.uwsm = {
    enable = true;
    waylandCompositors = {
      hyprland = {
        prettyName = "Hyprland";
        comment = "Hyprland compositor managed by UWSM";
        binPath = "/run/current-system/sw/bin/Hyprland";
      };
    };
  };

  # Add this to ensure proper session management
  services.logind.extraConfig = ''
    HandlePowerKey=suspend
    HandleLidSwitch=suspend
  '';

  # SDDM
  services = {
    displayManager = {
      defaultSession = "hyprland-uwsm";
      sddm = {
        enable = true;
        enableHidpi = true;
        wayland.enable = true;
        settings = {
          General = {
            HaltCommand = "/run/current-system/sw/bin/systemctl poweroff";
            RebootCommand = "/run/current-system/sw/bin/systemctl reboot";
          };
          # If you had autologin settings, add them here too
        };
        extraPackages = with pkgs; [
          # SDDM Extra packages for the theme. #BUG: Will not work as the theme as qt5 in it.
          #          kdePackages.qtsvg
          #kdePackages.qt5compat
          #kdePackages.qtdeclarative
          #libsForQt5.qt5.qtgraphicaleffects

          # SDDM Extra packages for the theme.
          libsForQt5.qtgraphicaleffects
          libsForQt5.qt5.qtsvg
          libsForQt5.qt5ct
          libsForQt5.qtquickcontrols2
        ];

        # settings = {
        #   Autologin = {
        #     Session = "hyprland.desktop";
        #     User = "Linux-DADDY";
        #   };
        # };

        autoNumlock = true;
        sugarCandyNix = {
          enable = true;
          settings = {
            #Background = lib.cleanSource ./Lock_Screen_Pictures/Cloudsday.jpg;
            Background = lib.cleanSource ./Lock_Screen_Pictures/a_man_standing_in_a_dark_place_with_a_large_circle_of_light.jpg;

            ScreenWidth = 1920;
            ScreenHeight = 1080;
            FormPosition = "left";
            HaveFormBackground = true;
            PartialBlur = true;
            MainColor = "#cdd6f4";
            AccentColor = "#89dceb";
          };
        };
      };
    };
  };
}
1 Like
2

same issue, but new to hyprland. i’ve tried the same and loginctl terminate-session $x. I suspected uwsm but haven’t looked into it yet.

3

running uwsm stop avoids the sddm crash for me

4

For me it did not, And thank you for your response to me, And can i get your uwsm config about how you have set that up?

5

hello can i see your configuration.nix and are you on laptop or desktop

6

wauw. i had this issue for like… 2-3 weeks?

…except im using greetd with tuigreet (services.greetd.package = pkgs.tuigreet). so… it must have something to do with the hyprland-uwsm.desktop session, right?

i just ragequit, honestly. i didnt even bother. i have deleted every login manager and i just log in from tty to hyprland UWSM with:

uwsm start hyprland-uwsm.desktop

and i logout with:

loginctl kill-session $XDG_SESSION_ID

btw im pretty sure you dont need to use programs.uwsm.* at all, i mean, there is a programs.hyprland.withUWSM :crazy_face:

edit: i use flakes btw

edit2: quickly after this, i fixed my issue: DO NOT set services.greetd.package, apparently pkgs.tuigreet breaks the service?

edit3: nvm they fixed it. but ive since then started using services.displayManager.lemurs.enable instead

EDIT4: hey guys hows it going? here’s a few more session quitters (shell commands). i forgot i had them in my config lol:

hyprctl dispatch exit

loginctl terminate-session "$XDG_SESSION_ID"

loginctl terminate-user ""

systemctl --user stop wayland-wm@*.service

uwsm stop

should be enough to log out gracefully, right…?

1 Like
7

Initially, I believed it was caused by SDDM; however, it appears the issue stems from uwsm.

i’m curious by the way about How can you ragequit when you chose to use nixos?

So I think you’re right. I will remove and test it later.

This the thing fixed the whole issue which i had for a week.
Thank you

2 Likes
8

This fixed the problem for me! Thanks!