niri: add disabled outputs option

Signed-off-by: Myned <dev@bjork.tech>

machines/mynix/default.nix

@@ -15,6 +15,11 @@
     refresh = 100;
     #// vrr = true;
 
+    desktops.niri.output = {
+      connectors = ["DP-1" "DP-2" "DP-3"];
+      disabled = ["HDMI-A-1" "HDMI-A-2" "HDMI-A-3"];
+    };
+
     programs.looking-glass = {
       enable = true;
       igpu = true;

options/custom/desktops/niri/default.nix

@@ -102,6 +102,10 @@ in {
           # https://github.com/sodiboo/niri-flake/blob/main/docs.md#programsnirisettingsdebug
           settings.debug = {
             #// disable-direct-scanout = [];
+
+            # BUG: Crash when multiple outputs from the same monitor are enabled
+            # https://github.com/YaLTeR/niri/issues/734
+            disable-monitor-names = [];
           };
         };
       }

options/custom/desktops/niri/output.nix

@@ -9,6 +9,7 @@ in {
   options.custom.desktops.niri.output = {
     enable = mkOption {default = false;};
     connectors = mkOption {default = [];};
+    disabled = mkOption {default = [];};
   };
 
   config = mkIf cfg.enable {
@@ -31,7 +32,11 @@ in {
               scale = config.custom.scale;
               variable-refresh-rate = mkIf config.custom.vrr "on-demand"; #!! Requires window-rule
             };
-        }));
+          })
+          ++ (forEach cfg.disabled (connector: {
+            name = connector;
+            value = {enable = false;};
+          })));
       }
     ];
   };