Listen for dbus signal “screen awake” gnome ubuntu 18.04











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Playing around with dbus for the first time (apologies in advance for noobness). I want to do something similar to this question except that instead of monitoring the system waking up, I want to monitor when the user moves the mouse or makes a keypress and the screen turns on.



So far I have a basic Python script:



#!/usr/bin/env python3

import dbus
import openrazer.client

from gi.repository import GObject as gobject
from dbus.mainloop.glib import DBusGMainLoop

client = openrazer.client.DeviceManager()

def wake_up(sleeping):
if not sleeping:
print("Linux rising!")
for d in range(0, len(client.devices)):
if client.devices[d].name == "Razer Ornata Chroma":
client.devices[d].brightness = 100
else:
print("Linux dreaming...")

DBusGMainLoop(set_as_default=True)
bus = dbus.SystemBus()
bus.add_signal_receiver( # define signal to listen to
wake_up, # name of callback function
'SessionIdleChanges', # signal name
'org.gnome.ScreenSaver' # interface
)

loop = gobject.MainLoop()
loop.run()


My understanding is that this should capture the screensaver changing (which I take to be "screen wake"), but it doesn't seem to work – I see no output in my console or an output file (if running with python3 script-name.py >> output.txt)










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    up vote
    0
    down vote

    favorite












    Playing around with dbus for the first time (apologies in advance for noobness). I want to do something similar to this question except that instead of monitoring the system waking up, I want to monitor when the user moves the mouse or makes a keypress and the screen turns on.



    So far I have a basic Python script:



    #!/usr/bin/env python3

    import dbus
    import openrazer.client

    from gi.repository import GObject as gobject
    from dbus.mainloop.glib import DBusGMainLoop

    client = openrazer.client.DeviceManager()

    def wake_up(sleeping):
    if not sleeping:
    print("Linux rising!")
    for d in range(0, len(client.devices)):
    if client.devices[d].name == "Razer Ornata Chroma":
    client.devices[d].brightness = 100
    else:
    print("Linux dreaming...")

    DBusGMainLoop(set_as_default=True)
    bus = dbus.SystemBus()
    bus.add_signal_receiver( # define signal to listen to
    wake_up, # name of callback function
    'SessionIdleChanges', # signal name
    'org.gnome.ScreenSaver' # interface
    )

    loop = gobject.MainLoop()
    loop.run()


    My understanding is that this should capture the screensaver changing (which I take to be "screen wake"), but it doesn't seem to work – I see no output in my console or an output file (if running with python3 script-name.py >> output.txt)










    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Playing around with dbus for the first time (apologies in advance for noobness). I want to do something similar to this question except that instead of monitoring the system waking up, I want to monitor when the user moves the mouse or makes a keypress and the screen turns on.



      So far I have a basic Python script:



      #!/usr/bin/env python3

      import dbus
      import openrazer.client

      from gi.repository import GObject as gobject
      from dbus.mainloop.glib import DBusGMainLoop

      client = openrazer.client.DeviceManager()

      def wake_up(sleeping):
      if not sleeping:
      print("Linux rising!")
      for d in range(0, len(client.devices)):
      if client.devices[d].name == "Razer Ornata Chroma":
      client.devices[d].brightness = 100
      else:
      print("Linux dreaming...")

      DBusGMainLoop(set_as_default=True)
      bus = dbus.SystemBus()
      bus.add_signal_receiver( # define signal to listen to
      wake_up, # name of callback function
      'SessionIdleChanges', # signal name
      'org.gnome.ScreenSaver' # interface
      )

      loop = gobject.MainLoop()
      loop.run()


      My understanding is that this should capture the screensaver changing (which I take to be "screen wake"), but it doesn't seem to work – I see no output in my console or an output file (if running with python3 script-name.py >> output.txt)










      share|improve this question













      Playing around with dbus for the first time (apologies in advance for noobness). I want to do something similar to this question except that instead of monitoring the system waking up, I want to monitor when the user moves the mouse or makes a keypress and the screen turns on.



      So far I have a basic Python script:



      #!/usr/bin/env python3

      import dbus
      import openrazer.client

      from gi.repository import GObject as gobject
      from dbus.mainloop.glib import DBusGMainLoop

      client = openrazer.client.DeviceManager()

      def wake_up(sleeping):
      if not sleeping:
      print("Linux rising!")
      for d in range(0, len(client.devices)):
      if client.devices[d].name == "Razer Ornata Chroma":
      client.devices[d].brightness = 100
      else:
      print("Linux dreaming...")

      DBusGMainLoop(set_as_default=True)
      bus = dbus.SystemBus()
      bus.add_signal_receiver( # define signal to listen to
      wake_up, # name of callback function
      'SessionIdleChanges', # signal name
      'org.gnome.ScreenSaver' # interface
      )

      loop = gobject.MainLoop()
      loop.run()


      My understanding is that this should capture the screensaver changing (which I take to be "screen wake"), but it doesn't seem to work – I see no output in my console or an output file (if running with python3 script-name.py >> output.txt)







      ubuntu-gnome lock-screen dbus






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      asked Nov 25 at 18:32









      GrayedFox

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