https://gitlab.freedesktop.org/upower/upower/-/issues/201

Index: src/openbsd/up-backend.c
--- src/openbsd/up-backend.c.orig
+++ src/openbsd/up-backend.c
@@ -33,6 +33,7 @@ static void	up_backend_init	(UpBackend		*backend);
 static void	up_backend_finalize	(GObject		*object);
 
 static gboolean	up_backend_apm_get_power_info(struct apm_power_info*);
+static gpointer	up_backend_apm_event_thread(gpointer object);
 UpDeviceState up_backend_apm_get_battery_state_value(u_char battery_state);
 static void	up_backend_update_acpibat_state(UpDevice*, struct sensordev);
 static void	up_backend_update_lid_status(UpDaemon*);
@@ -127,10 +128,63 @@ up_apm_device_get_online (UpDevice *device, gboolean *
 gboolean
 up_backend_coldplug (UpBackend *backend, UpDaemon *daemon)
 {
-	backend->priv->daemon = g_object_ref (daemon);
+	GError *err = NULL;
+	UpDeviceClass *device_class;
+	gint64 current_time;
 
+	backend->priv = up_backend_get_instance_private (backend);
+	backend->priv->daemon = g_object_ref (daemon);
+	backend->priv->is_laptop = up_native_is_laptop();
+	g_debug("is_laptop:%d",backend->priv->is_laptop);
 	if (backend->priv->is_laptop)
 	{
+		UpApmNative *acnative = NULL;
+		UpApmNative *battnative = NULL;
+
+		acnative = up_apm_native_new("/ac");
+		battnative = up_apm_native_new("/batt");
+
+		backend->priv->ac = UP_DEVICE(up_device_new (backend->priv->daemon, G_OBJECT(acnative)));
+		backend->priv->battery = UP_DEVICE(up_device_new (backend->priv->daemon, G_OBJECT(battnative)));
+
+		g_object_unref (acnative);
+		g_object_unref (battnative);
+
+		device_class = UP_DEVICE_GET_CLASS (backend->priv->battery);
+		device_class->get_on_battery = up_apm_device_get_on_battery;
+		device_class->get_online = up_apm_device_get_online;
+		device_class->refresh = up_apm_device_refresh;
+		device_class = UP_DEVICE_GET_CLASS (backend->priv->ac);
+		device_class->get_on_battery = up_apm_device_get_on_battery;
+		device_class->get_online = up_apm_device_get_online;
+		device_class->refresh = up_apm_device_refresh;
+		/* creates thread */
+		if((backend->priv->apm_thread = (GThread*) g_thread_try_new("apm-poller",(GThreadFunc)up_backend_apm_event_thread, (void*) backend, &err)) == NULL)
+		{
+			g_warning("Thread create failed: %s", err->message);
+			g_error_free (err);
+		}
+
+		/* setup dummy */
+		current_time = g_get_real_time () / G_USEC_PER_SEC;
+		g_object_set (backend->priv->battery,
+			      "type", UP_DEVICE_KIND_BATTERY,
+			      "power-supply", TRUE,
+			      "is-present", TRUE,
+			      "is-rechargeable", TRUE,
+			      "has-history", TRUE,
+			      "state", UP_DEVICE_STATE_UNKNOWN,
+			      "percentage", 0.0f,
+			      "time-to-empty", (gint64) 0,
+			      "update-time", (guint64) current_time,
+			      (void*) NULL);
+		g_object_set (backend->priv->ac,
+			      "type", UP_DEVICE_KIND_LINE_POWER,
+			      "online", TRUE,
+			      "power-supply", TRUE,
+			      "update-time", (guint64) current_time,
+			      (void*) NULL);
+
 		up_backend_update_lid_status(daemon);
 		if (!g_initable_init (G_INITABLE (backend->priv->ac), NULL, NULL))
 			g_warning ("failed to coldplug ac");
@@ -142,7 +196,6 @@ up_backend_coldplug (UpBackend *backend, UpDaemon *dae
 		else
 			g_signal_emit (backend, signals[SIGNAL_DEVICE_ADDED], 0, backend->priv->battery);
 	}
-
 	return TRUE;
 }
 
@@ -259,7 +312,7 @@ up_backend_update_battery_state(UpDevice* device)
 	gdouble percentage;
 	gboolean ret, is_present;
 	struct sensordev sdev;
-	UpDeviceState cur_state, new_state;
+	UpDeviceState cur_state, new_state = UP_DEVICE_STATE_UNKNOWN;
 	gint64 cur_time_to_empty, new_time_to_empty;
 	struct apm_power_info a;
 
@@ -597,63 +650,7 @@ up_backend_class_init (UpBackendClass *klass)
 static void
 up_backend_init (UpBackend *backend)
 {
-	GError *err = NULL;
-	UpDeviceClass *device_class;
-	gint64 current_time;
-
 	backend->priv = up_backend_get_instance_private (backend);
-	backend->priv->is_laptop = up_native_is_laptop();
-	g_debug("is_laptop:%d",backend->priv->is_laptop);
-	if (backend->priv->is_laptop)
-	{
-		UpApmNative *acnative = NULL;
-		UpApmNative *battnative = NULL;
-
-		acnative = up_apm_native_new("/ac");
-		battnative = up_apm_native_new("/batt");
-
-		backend->priv->ac = UP_DEVICE(up_device_new (backend->priv->daemon, G_OBJECT(acnative)));
-		backend->priv->battery = UP_DEVICE(up_device_new (backend->priv->daemon, G_OBJECT(battnative)));
-
-		g_object_unref (acnative);
-		g_object_unref (battnative);
-
-		device_class = UP_DEVICE_GET_CLASS (backend->priv->battery);
-		device_class->get_on_battery = up_apm_device_get_on_battery;
-		device_class->get_online = up_apm_device_get_online;
-		device_class->refresh = up_apm_device_refresh;
-		device_class = UP_DEVICE_GET_CLASS (backend->priv->ac);
-		device_class->get_on_battery = up_apm_device_get_on_battery;
-		device_class->get_online = up_apm_device_get_online;
-		device_class->refresh = up_apm_device_refresh;
-		/* creates thread */
-		if((backend->priv->apm_thread = (GThread*) g_thread_try_new("apm-poller",(GThreadFunc)up_backend_apm_event_thread, (void*) backend, &err)) == NULL)
-		{
-			g_warning("Thread create failed: %s", err->message);
-			g_error_free (err);
-		}
-
-		/* setup dummy */
-		current_time = g_get_real_time () / G_USEC_PER_SEC;
-		g_object_set (backend->priv->battery,
-			      "type", UP_DEVICE_KIND_BATTERY,
-			      "power-supply", TRUE,
-			      "is-present", TRUE,
-			      "is-rechargeable", TRUE,
-			      "has-history", TRUE,
-			      "state", UP_DEVICE_STATE_UNKNOWN,
-			      "percentage", 0.0f,
-			      "time-to-empty", (gint64) 0,
-			      "update-time", (guint64) current_time,
-			      (void*) NULL);
-		g_object_set (backend->priv->ac,
-			      "type", UP_DEVICE_KIND_LINE_POWER,
-			      "online", TRUE,
-			      "power-supply", TRUE,
-			      "update-time", (guint64) current_time,
-			      (void*) NULL);
-	}
-
 	backend->priv->config = up_config_new ();
 	backend->priv->seat_manager_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
 									   0,