···

       
4
       
4
       
 
       
  pkgs,

     

       
5
       
5
       
 
       
  ...

     

       
6
       
6
       
 
       
}: let

     

       
7
       
7
       
-
       
  x11Enabled = config.services.xserver.enable

     

       
8
       
8
       
-
       
               && (lib.elem "nvidia" config.services.xserver.videoDrivers);

     

       
7
       
7
       
+
       
  nvidiaEnabled = (lib.elem "nvidia" config.services.xserver.videoDrivers);

     

       
9
       
8
       
 
       
  nvidia_x11 =

     

       
10
       
10
       
-
       
    if  x11Enabled || cfg.datacenter.enable

     

       
9
       
9
       
+
       
    if nvidiaEnabled || cfg.datacenter.enable

     

       
11
       
10
       
 
       
    then cfg.package

     

       
12
       
11
       
 
       
    else null;

     

       
13
       
12
       
 
       


     
···

       
256
       
255
       
 
       
      ({

     

       
257
       
256
       
 
       
        assertions = [

     

       
258
       
257
       
 
       
          {

     

       
259
       
259
       
-
       
            assertion = !(x11Enabled && cfg.datacenter.enable);

     

       
258
       
258
       
+
       
            assertion = !(nvidiaEnabled && cfg.datacenter.enable);

     

       
260
       
259
       
 
       
            message = "You cannot configure both X11 and Data Center drivers at the same time.";

     

       
261
       
260
       
 
       
          }

     

       
262
       
261
       
 
       
        ];

     
···

       
289
       
288
       
 
       
        ];

     

       
290
       
289
       
 
       
      })

     

       
291
       
290
       
 
       
      # X11

     

       
292
       
292
       
-
       
      (lib.mkIf x11Enabled {

     

       
291
       
291
       
+
       
      (lib.mkIf nvidiaEnabled {

     

       
293
       
292
       
 
       
        assertions = [

     

       
294
       
293
       
 
       
        {

     

       
295
       
294
       
 
       
          assertion = primeEnabled -> pCfg.intelBusId == "" || pCfg.amdgpuBusId == "";