···

       
9
       
 
       
  xEnv = config.systemd.services."display-manager".environment;

     

       
10
       
 
       
  cfg = dmcfg.lightdm;

     

       
11
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
12
       
 
       
  inherit (pkgs) stdenv lightdm writeScript writeText;

     

       
13
       
 
       


     

       
14
       
 
       
  # lightdm runs with clearenv(), but we need a few things in the enviornment for X to startup

     
···

       
54
       
 
       
        autologin-user-timeout = ${toString cfg.autoLogin.timeout}

     

       
55
       
 
       
        autologin-session = ${defaultSessionName}

     

       
56
       
 
       
      ''}

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
57
       
 
       
      ${cfg.extraSeatDefaults}

     

       
58
       
 
       
    '';

     

       
59
       
 
       


     

       
60
       
-
       
  defaultSessionName =

     

       
61
       
-
       
    let

     

       
62
       
-
       
      dm = xcfg.desktopManager.default;

     

       
63
       
-
       
      wm = xcfg.windowManager.default;

     

       
64
       
-
       
    in dm + optionalString (wm != "none") ("+" + wm);

     

       
65
       
 
       
in

     

       
66
       
 
       
{

     

       
67
       
 
       
  # Note: the order in which lightdm greeter modules are imported

     
···

       
177
       
 
       
          LightDM auto-login requires that services.xserver.desktopManager.default and

     

       
178
       
 
       
          services.xserver.windowMananger.default are set to valid values. The current

     

       
179
       
 
       
          default session: ${defaultSessionName} is not valid.

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
180
       
 
       
        '';

     

       
181
       
 
       
      }

     

       
182
       
 
       
      { assertion = !cfg.greeter.enable -> (cfg.autoLogin.enable && cfg.autoLogin.timeout == 0);

     

···

       
9
       
 
       
  xEnv = config.systemd.services."display-manager".environment;

     

       
10
       
 
       
  cfg = dmcfg.lightdm;

     

       
11
       
 
       


     

       
12
       
+
       
  dmDefault = xcfg.desktopManager.default;

     

       
13
       
+
       
  wmDefault = xcfg.windowManager.default;

     

       
14
       
+
       
  hasDefaultUserSession = dmDefault != "none" || wmDefault != "none";

     

       
15
       
+
       


     

       
16
       
 
       
  inherit (pkgs) stdenv lightdm writeScript writeText;

     

       
17
       
 
       


     

       
18
       
 
       
  # lightdm runs with clearenv(), but we need a few things in the enviornment for X to startup

     
···

       
58
       
 
       
        autologin-user-timeout = ${toString cfg.autoLogin.timeout}

     

       
59
       
 
       
        autologin-session = ${defaultSessionName}

     

       
60
       
 
       
      ''}

     

       
61
       
+
       
      ${optionalString hasDefaultUserSession ''

     

       
62
       
+
       
        user-session=${defaultSessionName}

     

       
63
       
+
       
      ''}

     

       
64
       
 
       
      ${cfg.extraSeatDefaults}

     

       
65
       
 
       
    '';

     

       
66
       
 
       


     

       
67
       
+
       
  defaultSessionName = dmDefault + optionalString (wmDefault != "none") ("+" + wmDefault);

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
68
       
 
       
in

     

       
69
       
 
       
{

     

       
70
       
 
       
  # Note: the order in which lightdm greeter modules are imported

     
···

       
180
       
 
       
          LightDM auto-login requires that services.xserver.desktopManager.default and

     

       
181
       
 
       
          services.xserver.windowMananger.default are set to valid values. The current

     

       
182
       
 
       
          default session: ${defaultSessionName} is not valid.

     

       
183
       
+
       
        '';

     

       
184
       
+
       
      }

     

       
185
       
+
       
      { assertion = hasDefaultUserSession -> elem defaultSessionName dmcfg.session.names;

     

       
186
       
+
       
        message = ''

     

       
187
       
+
       
          services.xserver.desktopManager.default and

     

       
188
       
+
       
          services.xserver.windowMananger.default are not set to valid

     

       
189
       
+
       
          values. The current default session: ${defaultSessionName}

     

       
190
       
+
       
          is not valid.

     

       
191
       
 
       
        '';

     

       
192
       
 
       
      }

     

       
193
       
 
       
      { assertion = !cfg.greeter.enable -> (cfg.autoLogin.enable && cfg.autoLogin.timeout == 0);