set display power and brightness on app init

system/ui/lib/application.py

@@ -5,6 +5,7 @@ import pyray as rl
 from enum import IntEnum
 from openpilot.common.basedir import BASEDIR
 from openpilot.common.swaglog import cloudlog
+from openpilot.system.hardware import HARDWARE
 
 DEFAULT_FPS = 60
 FPS_LOG_INTERVAL = 5  # Seconds between logging FPS drops
@@ -46,6 +47,9 @@ class GuiApplication:
   def init_window(self, title: str, fps: int=DEFAULT_FPS):
     atexit.register(self.close)  # Automatically call close() on exit
 
+    HARDWARE.set_display_power(True)
+    HARDWARE.set_screen_brightness(65)
+
     rl.set_config_flags(rl.ConfigFlags.FLAG_MSAA_4X_HINT | rl.ConfigFlags.FLAG_VSYNC_HINT)
     rl.init_window(self._width, self._height, title)
     rl.set_target_fps(fps)