Re: Connection failures on Ubuntu

[Felipe Ferreri Tonello <eu@felipetonello.com>]

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Hi Mark,

On 10/11/15 17:20, Mark Spruiell wrote:
> I'm not able to connect to a service running on Ubuntu 15.10. The
> system-provided BlueZ version is 5.35.
> 
> I can reproduce it using the test scripts. On Ubuntu:
> 
> ./test-profile -s -u b85280dd-b78a-4a45-be4b-b6fec4abd86f -n "Test Server" -C 5
> 
> sdptool shows the service:
> 
> Service Name: Test Server
> Service RecHandle: 0x10009
> Service Class ID List:
>   UUID 128: b85280dd-b78a-4a45-be4b-b6fec4abd86f
> Protocol Descriptor List:
>   "L2CAP" (0x0100)
>   "RFCOMM" (0x0003)
>     Channel: 5
> 
> On a different host (this one running Fedora 22 with BlueZ 5.29), I
> start a client:
> 
> ./test-profile -u b85280dd-b78a-4a45-be4b-b6fec4abd86f -c
> 
> and then
> 
> ./test-device connect <ubuntu-addr> b85280dd-b78a-4a45-be4b-b6fec4abd86f
> Traceback (most recent call last):
>   File "./test-device", line 104, in <module>
>     device.ConnectProfile(args[2])
>   File "/usr/lib64/python2.7/site-packages/dbus/proxies.py", line 70,
> in __call__
>     return self._proxy_method(*args, **keywords)
>   File "/usr/lib64/python2.7/site-packages/dbus/proxies.py", line 145,
> in __call__
>     **keywords)
>   File "/usr/lib64/python2.7/site-packages/dbus/connection.py", line
> 651, in call_blocking
>     message, timeout)
> dbus.exceptions.DBusException: org.bluez.Error.Failed: Connection refused
> 
> Other times I will get:
> 
> dbus.exceptions.DBusException: org.bluez.Error.Failed: Resource
> temporarily unavailable
> 
> These hosts are already paired. Things work fine when both hosts are
> using Fedora 22.
> 
> Any suggestions on how I can diagnose this further?

I had this type of problem on Ubuntu when trying to register master's
build of bluetoothd to D-Bus on Ubuntu as well and not on Fedora.

Try to tweak /etc/dbus-1/system.d/bluetooth.conf user permissions just
for development.

-- 
Felipe

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