deu certo! script de python simples:
#!/usr/bin/python
import os
import time
import dbus
session_bus = dbus.SessionBus()
from gi.repository import TelepathyGLib as Tp
from gi.repository import GObject
loop = GObject.MainLoop()
am = Tp.AccountManager.dup()
am.prepare_async(None, lambda *args: loop.quit(), None)
loop.run()
screensaver_started = 0
running = 0
while 1:
active = 0
out = ""
pid = 0
if screensaver_started == 0:
# Don't do anything if the screensaver isn't running
s = os.popen("pidof gnome-screensaver")
spid = s.read()
s.close()
if len(spid) > 0:
screensaver_started = 1
else:
h = os.popen("gnome-screensaver-command -q", "r")
out = h.read()
active = out.find("inactive")
h.close()
if active < 0 and running == 0:
am.set_all_requested_presences(Tp.ConnectionPresenceType.OFFLINE, 'Offline', "")
running = 1
elif active > 0 and running == 1:
am.set_all_requested_presences(Tp.ConnectionPresenceType.AVAILABLE, 'available', "")
running = 0
time.sleep(3)
este script irá automaticamente definir o status como "indisponível" quando a tela estiver bloqueada ou a proteção de tela estiver ativada, e irá trazê-la de volta à disposição (online) quando o protetor de tela estiver fechado!