Bluetooth: UnknownObject: Method "Set" with signature "ssu" on interface

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1

13.12.21 22:28:47 (+0000) bluetooth Traceback (most recent call last):
13.12.21 22:28:47 (+0000) bluetooth File “/usr/src/bluetooth-agent”, line 144, in
13.12.21 22:28:47 (+0000) bluetooth dbus_set_property(DBUS_NAME, DBUS_OBJECT + ‘/’ + interface, DBUS_INTERFACE_ADAPTER, “DiscoverableTimeout”, dbus.UInt32(0))
13.12.21 22:28:47 (+0000) bluetooth File “/usr/src/bluetooth-agent”, line 42, in dbus_set_property
13.12.21 22:28:47 (+0000) bluetooth props.Set(interface_name, prop_name, value)
13.12.21 22:28:47 (+0000) bluetooth File “/usr/lib/python3.8/site-packages/dbus/proxies.py”, line 72, in call
13.12.21 22:28:47 (+0000) bluetooth return self._proxy_method(*args, **keywords)
13.12.21 22:28:47 (+0000) bluetooth File “/usr/lib/python3.8/site-packages/dbus/proxies.py”, line 141, in call
13.12.21 22:28:47 (+0000) bluetooth return self._connection.call_blocking(self._named_service,
13.12.21 22:28:47 (+0000) bluetooth File “/usr/lib/python3.8/site-packages/dbus/connection.py”, line 652, in call_blocking
13.12.21 22:28:47 (+0000) bluetooth reply_message = self.send_message_with_reply_and_block(
13.12.21 22:28:47 (+0000) bluetooth dbus.exceptions.DBusException: org.freedesktop.DBus.Error.UnknownObject: Method “Set” with signature “ssu” on interface “org.freedesktop.DBus.Properties” doesn’t exist
13.12.21 22:28:47 (+0000) bluetooth
13.12.21 22:28:50 (+0000) Service exited ‘bluetooth sha256:eaaab8aa4a38721fcf34c536c8eb94ea2d353a813589842a1f141d9e117e291f’

2

Hello,

Thank you for providing a stack trace. Can you please describe the issue in a bit more detail?

  • what are you trying to achieve?
  • which OS version are you running?
  • which hardware are you using?
  • which application are you trying to run?
4

Hello there,
thank you for the quick reply.

I am using ‘balenaOS version 2.65.0+rev1’. This is on a Raspberry Pi 3 Model B V1.2.

I am attempting to stream music from a device over Bluetooth to the raspberry pi, however, after trying numerous devices (various phones, android and apple, along with an amazon echo) including using multiple USB Bluetooth dongles with the raspberry pi itself rather than the built-in Bluetooth (as people had success with fixing similar issues using this on the forums) I still could not get this to work without it either; not connecting to the devices, or the devices connecting for a split second before both attempts resulting with the previously mentioned logs.

If you have any ideas on a way to fix this or if I’m just missing something obvious it would be greatly appreciated.