1 files changed, 8 insertions, 5 deletions

diff --git a/main/app_main.c b/main/app_main.c
index c411c46..a60496d 100644
--- a/main/app_main.c
+++ b/main/app_main.c
@@ -103,13 +103,16 @@ static void display_setup_task(void *arg)
 
     ESP_LOGI(TAG, "display subsystems [%s] up", flags);
 
-    // Wake the display on boot. Empirically the FT5426 touch IC only
-    // reports contacts when the LCD is actively streaming with the
-    // backlight on — booting straight into ASLEEP leaves taps silently
-    // unread. The idle timer (idle_timeout_ms) puts the device back to
-    // sleep on its own if nothing happens.
+    // Briefly wake the display on boot so the FT5426 touch IC can come
+    // out of its initial unresponsive state — empirically it only
+    // reports contacts when the LCD has been actively streaming with
+    // the backlight on at least once since power-up. A 600 ms flash is
+    // enough; we then sleep so an idle device doesn't burn the
+    // backlight until the idle timer fires.
     if (dsp_err == ESP_OK) {
         state_machine_set(VIEWPORT_STATE_AWAKE);
+        vTaskDelay(pdMS_TO_TICKS(600));
+        state_machine_set(VIEWPORT_STATE_ASLEEP);
     }
 
     vTaskDelete(NULL);