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[Michael Sheldon <michael.sheldon@xxxxxxxxxxxxx>]

** Also affects: ubuntu-keyboard (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1511895

Title:
  Errors resetting OSK keyboard

Status in ubuntu-keyboard:
  New
Status in ubuntu-keyboard package in Ubuntu:
  New

Bug description:
  As part of different tests on real devices (I tested this in krillin),
  sporadically we face the following exception trying to reset the
  ubuntu keyboars.

  input.Keyboard.create('OSK')._keyboard.reset()

  Traceback (most recent call last):
    File "/tmp/adt-run.glq52M/build.9cm/real-tree/ubuntu_system_tests/tests/scopes/__init__.py", line 38, in setUp
      self.unity_proxy = self.restart_unity()
    File "/tmp/adt-run.glq52M/build.9cm/real-tree/ubuntu_system_tests/tests/base.py", line 167, in restart_unity
      unity_proxy = self.launch_unity(fake_sensors=fake_sensors)
    File "/usr/lib/python3/dist-packages/autopilot/logging.py", line 46, in inner
      return f(instance, *args, **kwargs)
    File "/tmp/adt-run.glq52M/build.9cm/real-tree/ubuntu_system_tests/tests/base.py", line 106, in launch_unity
      self._reset_keyboard()
    File "/tmp/adt-run.glq52M/build.9cm/real-tree/ubuntu_system_tests/tests/base.py", line 135, in _reset_keyboard
      input.Keyboard.create('OSK')._keyboard.reset()
    File "/usr/lib/python3/dist-packages/autopilot/input/__init__.py", line 129, in create
      return _pick_backend(backends, preferred_backend)
    File "/usr/lib/python3/dist-packages/autopilot/utilities.py", line 60, in _pick_backend
      raise BackendException(e)
  autopilot.exceptions.BackendException: Error while initialising backend. Original exception was: ("Search criteria (connection name = 'org.maliit.server', object path = '/com/canonical/Autopilot/Introspection') returned no results", 'Unable to find maliit-server dbus object. Has it been started with introspection enabled?')

  In other similar situations we also got ProcessSearchError

  Traceback (most recent call last):
    File "/tmp/adt-run.O0cgIp/build.2vP/real-tree/ubuntu_system_tests/tests/test_maiil.py", line 82, in test_maiil_18
      self.unity_proxy = self.restart_unity()
    File "/tmp/adt-run.O0cgIp/build.2vP/real-tree/ubuntu_system_tests/tests/base.py", line 167, in restart_unity
      unity_proxy = self.launch_unity(fake_sensors=fake_sensors)
    File "/usr/lib/python3/dist-packages/autopilot/logging.py", line 46, in inner
      return f(instance, *args, **kwargs)
    File "/tmp/adt-run.O0cgIp/build.2vP/real-tree/ubuntu_system_tests/tests/base.py", line 106, in launch_unity
      self._reset_keyboard()
    File "/tmp/adt-run.O0cgIp/build.2vP/real-tree/ubuntu_system_tests/tests/base.py", line 135, in _reset_keyboard
      input.Keyboard.create('OSK')._keyboard.reset()
    File "/tmp/adt-run.O0cgIp/deps/usr/lib/python3/dist-packages/ubuntu_keyboard/emulators/keyboard.py", line 223, in reset
      self.maliit
    File "/tmp/adt-run.O0cgIp/deps/usr/lib/python3/dist-packages/ubuntu_keyboard/emulators/keyboard.py", line 106, in maliit
      emulator_base=toolkit.UbuntuUIToolkitCustomProxyObjectBase
    File "/usr/lib/python3/dist-packages/autopilot/introspection/_search.py", line 176, in get_proxy_object_for_existing_process
      _get_search_criteria_string_representation(**kwargs)
    File "/usr/lib/python3/dist-packages/autopilot/introspection/_search.py", line 358, in _raise_if_not_single_result
      (criteria_string)
  autopilot.exceptions.ProcessSearchError: ("Search criteria (object path = '/com/canonical/Autopilot/Introspection', connection name = 'org.maliit.server') returned no results", 'Unable to find maliit-server dbus object. Has it been started with introspection enabled?')

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