Sierra Wireless MC8781 vs. modem-manager from git

[Samium Gromoff <_deepfire feelingofgreen ru>]

Good day folks,

By the virtue of
https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/459052
I've ended up running modem-manager from git (today's master).

And yet, not all is well (there's no connection).  Here's the syslog
bits that looked interesting to me:
 
modem-manager[6071]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (disabled -> enabling)
modem-manager[6071]: (mm-modem-sierra-gsm.c:391):real_do_enable_power_up_done: runtime check failed: (priv->enable_wait_id == 0)
modem-manager[6071]: <info>  (ttyUSB0) opening serial port...
modem-manager[6071]: <warn>  (ttyUSB0): port attributes not fully set
modem-manager[6071]: Invalid error code: 303
modem-manager[6071]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabling -> enabled)
modem-manager[6071]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabled -> registered)
modem-manager[6071]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (registered -> connecting)
modem-manager[6071]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> connected)
modem-manager[6071]: <warn>  (ttyUSB2): failed to enable USSD notifications.
modem-manager[6071]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (connected -> disabled)

Feel free to ask me any questions.

The kernel is:
deepfire@dubhe:~$ uname -a
Linux dubhe 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:05:41 UTC 2011 i686 i686 i386 GNU/Linux

If it helps, here's the modem identification:
ATI                                                                         
Manufacturer: Sierra Wireless, Inc.
Model: MC8781
Revision: F1_0_0_4CAP C:/WS/FW/F1_0_0_4CAP/MSM7200R3/SRC/AMSS 2007/09/25 18:39:23
IMEI: 356685012975932
IMEI SV: 4
FSN: D350788185010
3GPP Release 6
+GCAP: +CGSM,+DS,+ES


OK

-- 
regards,
  Samium Gromoff
--
"Actually I made up the term 'object-oriented', and I can tell you I
did not have C++ in mind." - Alan Kay (OOPSLA 1997 Keynote)