diff --git a/main/light.c b/main/light.c
index 9e367f7..d8e0498 100644
--- a/main/light.c
+++ b/main/light.c
@@ -244,23 +244,11 @@ void light_play_colors(uint16_t len, uint8_t *buffer) {
   light_mode = light_mode_desktop_sending_colors;
   printf("COLORS=%.*s\r\n", len, buffer);
 
-  ESP_ERROR_CHECK(light_led_strip->clear(light_led_strip, 100));
   for (uint16_t led_index = 0, buffer_cursor = 0;
        led_index < STRIP_LED_NUMBER && buffer_cursor < len;
        led_index++, buffer_cursor += 3) {
     uint8_t r = buffer[buffer_cursor], g = buffer[buffer_cursor + 1],
             b = buffer[buffer_cursor + 2];
-    ESP_LOGI(LIGHT_TAG, "RGB: %d %d %d", r, g, b);
-    ESP_ERROR_CHECK(
-        light_led_strip->set_pixel(light_led_strip, led_index, r, g, b));
-  }
-  ESP_ERROR_CHECK(light_led_strip->refresh(light_led_strip, 100));
-  vTaskDelay(pdMS_TO_TICKS(10));
-  for (uint16_t led_index = 0, buffer_cursor = 0;
-       led_index < STRIP_LED_NUMBER && buffer_cursor < len;
-       led_index++, buffer_cursor += 3) {
-    uint8_t r = buffer[buffer_cursor], g = buffer[buffer_cursor + 1], b = 0;
-    ESP_LOGI(LIGHT_TAG, "RGB: %d %d %d", r, g, b);
     ESP_ERROR_CHECK(
         light_led_strip->set_pixel(light_led_strip, led_index, r, g, b));
   }
diff --git a/main/mqtt.c b/main/mqtt.c
index e55a785..e07717c 100644
--- a/main/mqtt.c
+++ b/main/mqtt.c
@@ -66,7 +66,7 @@ static void mqtt_event_handler(void *handler_args, esp_event_base_t base,
       msg_id = esp_mqtt_client_publish(client, MQTT_KEY_BOARD_ONLINE, "ONLINE",
                                        0, 1, 0);
       ESP_LOGI(MQTT_TAG, "sent publish successful, msg_id=%d", msg_id);
-      esp_mqtt_client_subscribe(client, MQTT_KEY_DESKTOP_ALL, 0);
+      esp_mqtt_client_subscribe(client, MQTT_KEY_DESKTOP_ALL, 1);
       break;
     case MQTT_EVENT_DISCONNECTED:
       ESP_LOGI(MQTT_TAG, "MQTT_EVENT_DISCONNECTED");