pinwheel: Ensure hyprland monitor detection works on start

hosts/pinwheel/modules/hyprland/default.nix

@@ -55,12 +55,22 @@ let
       esac
     }
 
-    # Bind workspaces on startup
-    bind_workspaces
-
+    # Start the event listener first so monitoradded events emitted during
+    # session startup are not lost in the gap before we begin reading them.
     ${pkgs.socat}/bin/socat -U - UNIX-CONNECT:"$XDG_RUNTIME_DIR/hypr/$HYPRLAND_INSTANCE_SIGNATURE/.socket2.sock" | while read -r line; do
       handle_event "$line"
-    done
+    done &
+    LISTENER_PID=$!
+
+    # Give socat a moment to actually connect before the initial bind.
+    sleep 0.2
+    bind_workspaces
+
+    # Re-bind once more after the DRM subsystem has had time to enumerate
+    # external connectors, in case they were not yet present at session start.
+    (sleep 3; bind_workspaces) &
+
+    wait $LISTENER_PID
   '';
 in
 {