2 files changed, 11 insertions, 3 deletions
diff --git a/nixos/modules/installer/tools/nixos-generate-config.pl b/nixos/modules/installer/tools/nixos-generate-config.pl
index a82ee63fd0cd..0e0744a52e42 100644
--- a/nixos/modules/installer/tools/nixos-generate-config.pl
+++ b/nixos/modules/installer/tools/nixos-generate-config.pl
@@ -603,6 +603,10 @@ $bootLoaderConfig
   # Enable CUPS to print documents.
   # services.printing.enable = true;
 
+  # Enable sound.
+  # sound.enable = true;
+  # hardware.pulseaudio.enable = true;
+
   # Enable the X11 windowing system.
   # services.xserver.enable = true;
   # services.xserver.layout = "us";
diff --git a/nixos/modules/services/audio/alsa.nix b/nixos/modules/services/audio/alsa.nix
index acf48d3c3d03..161d873686a8 100644
--- a/nixos/modules/services/audio/alsa.nix
+++ b/nixos/modules/services/audio/alsa.nix
@@ -21,7 +21,7 @@ in
 
       enable = mkOption {
         type = types.bool;
-        default = true;
+        defaultText = "!versionAtLeast system.stateVersion \"18.03\"";
         description = ''
           Whether to enable ALSA sound.
         '';
@@ -78,7 +78,11 @@ in
 
   ###### implementation
 
-  config = mkIf config.sound.enable {
+  config = mkMerge [
+    ({
+      sound.enable = mkDefault (!versionAtLeast config.system.stateVersion "18.03");
+    })
+    (mkIf config.sound.enable {
 
     environment.systemPackages = [ alsaUtils ];
 
@@ -124,6 +128,6 @@ in
       ];
     };
 
-  };
+  })];
 
 }