Comment 7 for bug 1760092

a complete trace

blueman-manager
_________
Load (/usr/lib/python3/dist-packages/blueman/main/PluginManager.py:60)
['Services', 'PulseAudioProfile']
_________
__load_plugin (/usr/lib/python3/dist-packages/blueman/main/PluginManager.py:133)
loading <class 'blueman.plugins.manager.Services.Services'>
_________
__load_plugin (/usr/lib/python3/dist-packages/blueman/main/PluginManager.py:133)
loading <class 'blueman.plugins.manager.PulseAudioProfile.PulseAudioProfile'>
_________
pa_context_event (/usr/lib/python3/dist-packages/blueman/main/PulseAudioUtils.py:341)
1
/usr/bin/blueman-manager:67: DeprecationWarning: Gtk.Window.get_has_resize_grip is deprecated
  if self.window.get_has_resize_grip():
blueman-manager version 2.0.5 starting
_________
pa_context_event (/usr/lib/python3/dist-packages/blueman/main/PulseAudioUtils.py:341)
2
_________
on_bluez_name_owner_changed (/usr/bin/blueman-manager:96)
org.bluez owner changed to :1.50
_________
get_interface_version (/usr/lib/python3/dist-packages/blueman/bluez/BlueZInterface.py:13)
Detected BlueZ 5
_________
SetAdapter (/usr/lib/python3/dist-packages/blueman/gui/DeviceList.py:271)

_________
on_adapter_changed (/usr/lib/python3/dist-packages/blueman/gui/manager/ManagerToolbar.py:83)
toolbar adapter /org/bluez/hci0
_________
pa_context_event (/usr/lib/python3/dist-packages/blueman/main/PulseAudioUtils.py:341)
3
_________
pa_context_event (/usr/lib/python3/dist-packages/blueman/main/PulseAudioUtils.py:341)
4
_________
on_pa_ready (/usr/lib/python3/dist-packages/blueman/plugins/manager/PulseAudioProfile.py:29)
connected
_________
<lambda> (/usr/lib/python3/dist-packages/blueman/main/PulseAudioUtils.py:353)
1
_________
__init__ (/usr/lib/python3/dist-packages/blueman/gui/manager/ManagerProgressbar.py:23)
hiding <ManagerProgressbar.ManagerProgressbar object at 0x7f94e8218048 (blueman+gui+manager+ManagerProgressbar+ManagerProgressbar at 0x1feac00)>
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/blueman/bluez/errors.py", line 146, in warp
    return func(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/blueman/bluez/Adapter.py", line 139, in stop_discovery
    self.get_interface().StopDiscovery()
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.bluez.Error.InProgress: Operation already in progress

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/blueman/gui/DeviceList.py", line 311, in update_progress
    self.StopDiscovery()
  File "/usr/lib/python3/dist-packages/blueman/gui/DeviceList.py", line 419, in StopDiscovery
    self.Adapter.stop_discovery()
  File "/usr/lib/python3/dist-packages/blueman/bluez/errors.py", line 148, in warp
    raise parse_dbus_error(exception)
blueman.bluez.errors.DBusInProgressError: Operation already in progress

Best regards

Battant