ModemManager using QMI doesnt always work in the first attemp.

[José]

This issue happens intermitently the first time I try the mmcli -m 0
--simple-connect command.

When it fails, issuing 'mmcli -m 0 --simple-connect' again properly connects.

Is there a way to fix this?

On Wed, Nov 18, 2015 at 10:42 AM, Aleksander Morgado
<aleksander at aleksander.es> wrote:
> On Tue, Nov 17, 2015 at 11:20 PM, Dan Williams <dcbw at redhat.com> wrote:
>> On Tue, 2015-11-17 at 18:10 +0100, José  wrote:
>>> Sorry for the delay.
>>>
>>> This is the debug log for the Telit LE910 with a Vodafone SIM:
>>> http://pastebin.com/U7EBv8sr
>>>
>>> The test case is:
>>> - Boot the device
>>> - Issue: mmcli -m 0 --simple-connect=apn=ac.vodafone.es
>>> This command returns: error: couldn't connect the modem: 'The
>>> connection is
>>> closed'
>>
>> It actually looks like ModemManager is getting kicked off D-Bus, which
>> is usually caused by MM trying to send non-UTF-8 strings in a signal or
>> D-Bus reply...
>
> This may be the issue for that disconnection:
>
>>>>>>> TLV:
>>>>>>>   type       = "Current PLMN" (0x12)
>>>>>>>   length     = 15
>>>>>>>   value      = D6:00:01:00:0A:F6:37:39:6C:7E:BB:CB:A0:E2:14
>>>>>>>   translated = [ mcc = '214' mnc = '1' description = '��~܋b ' ]
>
> We should validate the reported PLMN description string.
>
> --
> Aleksander
> https://aleksander.es