diff --git a/sway/config/output.c b/sway/config/output.c
index 19b9989a..9720bbf3 100644
--- a/sway/config/output.c
+++ b/sway/config/output.c
@@ -388,6 +388,17 @@ static void queue_output_config(struct output_config *oc,
 			oc->adaptive_sync);
 		wlr_output_enable_adaptive_sync(wlr_output, oc->adaptive_sync == 1);
 	}
+
+	// Reconfigure all devices, since input config may have been applied before
+	// this output came online, and some config items (like map_to_output) are
+	// dependent on an output being present.
+	struct sway_input_device *input_device = NULL;
+	wl_list_for_each(input_device, &server.input->devices, link) {
+		struct sway_seat *seat = NULL;
+		wl_list_for_each(seat, &server.input->seats, link) {
+			seat_configure_device(seat, input_device);
+		}
+	}
 }
 
 bool apply_output_config(struct output_config *oc, struct sway_output *output) {
diff --git a/sway/input/seat.c b/sway/input/seat.c
index b0e39612..36593806 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -652,6 +652,8 @@ static void seat_apply_input_config(struct sway_seat *seat,
 		}
 		struct sway_output *output = output_by_name_or_id(mapped_to_output);
 		if (!output) {
+			sway_log(SWAY_DEBUG, "Requested output %s for device %s isn't present",
+				mapped_to_output, sway_device->input_device->identifier);
 			return;
 		}
 		wlr_cursor_map_input_to_output(seat->cursor->cursor,
@@ -701,7 +703,7 @@ static void seat_configure_keyboard(struct sway_seat *seat,
 }
 
 static void seat_configure_switch(struct sway_seat *seat,
-        struct sway_seat_device *seat_device) {
+		struct sway_seat_device *seat_device) {
 	if (!seat_device->switch_device) {
 		sway_switch_create(seat, seat_device);
 	}