Close desktop safety gaps

config/dot/quickshell/modules/settings/DisplaysPage.qml

@@ -22,7 +22,7 @@ SettingsPage {
 
     property string selectedOutput: ""
     readonly property var monitor: Displays.monitorNamed(root.selectedOutput)
-        ?? (Displays.monitors.length > 0 ? Displays.monitors[0] : null)
+        ?? (Displays.primaryFirstMonitors.length > 0 ? Displays.primaryFirstMonitors[0] : null)
     readonly property string currentMode: root.monitor
         ? root.monitor.mode
         : ""
@@ -38,7 +38,8 @@ SettingsPage {
 
     function syncSelectedOutput(): void {
         if (!Displays.monitorNamed(root.selectedOutput))
-            root.selectedOutput = Displays.monitors.length > 0 ? Displays.monitors[0].name : "";
+            root.selectedOutput = Displays.primaryFirstMonitors.length > 0
+                ? Displays.primaryFirstMonitors[0].name : "";
     }
 
     // Probing I2C for DDC-capable monitors takes on the order of a second, so
@@ -137,7 +138,7 @@ SettingsPage {
         ChoiceGrid {
             width: parent.width
             label: "Display"
-            options: Displays.monitors.map(monitor => ({
+            options: Displays.primaryFirstMonitors.map(monitor => ({
                 value: monitor.name,
                 label: monitor.description || monitor.name
             }))

config/dot/quickshell/modules/settings/WallpaperControls.qml

@@ -18,6 +18,13 @@ Column {
     width: parent ? parent.width : 620
     spacing: 4
 
+    onOutputsChanged: root.syncSelectedOutput()
+
+    function syncSelectedOutput(): void {
+        if (!root.outputs.includes(root.selectedOutput))
+            root.selectedOutput = root.outputs.length > 0 ? root.outputs[0] : "";
+    }
+
     ChoiceGrid {
         width: parent.width
         label: "Wallpaper mode"