autorandr_monitor

   1 #!/usr/bin/env python
   2 import os
   3 import pyinotify
   4 from pyinotify import ProcessEvent
   5
   6 SYS_VIDEO_OUTPUTS='/sys/class/drm/card0/'
   7 SYS_VIDEO_OUTPUTS='/sys/class/drm/'
   8
   9 DEFAULT_PROFILE='default'
  10 AUTORANDR_CMD='autorandr --change --default %s' % DEFAULT_PROFILE
  11
  12 class VideoOutputMonitor(ProcessEvent):
  13
  14     def process_IN_ACCESS(self, event):
  15         if event.name == 'status':
  16             print 'Change status of %s' % os.path.basename(event.path)
  17             os.system(AUTORANDR_CMD)
  18
  19
  20 def register_video_cards(manager):
  21     if not os.path.exists(SYS_VIDEO_OUTPUTS):
  22         return
  23
  24     for directory in os.listdir(SYS_VIDEO_OUTPUTS):
  25         path = os.path.join(SYS_VIDEO_OUTPUTS, directory)
  26         status = os.path.join(path, 'status')
  27         if os.path.exists(status):
  28             print 'Monitoring %s' % path
  29             manager.add_watch(path, pyinotify.ALL_EVENTS)
  30
  31 # pyinotify.log.setLevel(10)
  32
  33 manager = pyinotify.WatchManager()
  34 handler = VideoOutputMonitor()
  35 notifier = pyinotify.Notifier(manager, default_proc_fun=handler)
  36
  37 register_video_cards(manager)
  38
  39 notifier.loop()