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[Aleksander Morgado <aleksander@xxxxxxxxxx>]

Sleepy John: syslog log is pretty useless if ModemManager wasn't run
with --debug, :-/ And regarding the priority, I really don't give a s***
about it :-) I personally do this in my free time, so at least for me,
it doesn't matter if it was low or super-critical, I'll try to help if I
have time.

Josua Dietze: The first test I suggest is to  ensure that the newer
kernel has no effect on this issue. If MM 0.4 works ok with the newer
kernel, it's probably MM's fault. The second test I suggest is to
completely avoid using the secondary port. If that test succeeds we can
probably force MM to avoid using the secondary port for this specific
Huawei device, at least until we can figure out why it failed that way.
So logs (in debug mode) for these tests will really help.

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https://bugs.launchpad.net/bugs/868034

Title:
  Huawei E220 can't connect on Ubuntu 11.10

Status in ModemManager (with NetworkManager support):
  Unknown
Status in “modemmanager” package in Ubuntu:
  Confirmed
Status in “network-manager” package in Ubuntu:
  In Progress
Status in “modemmanager” package in Debian:
  New
Status in “modemmanager” package in Fedora:
  Unknown

Bug description:
  I'm using Ubuntu in my HP Pavilion dv6745tx laptop. I cannot connect
  the Huawei E220 usb modem since 11.10 beta1 (now I'm in beta2). There
  is  no problem in natty.

  I have found this in syslog

  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) starting connection 'Dialog GSM Postpaid'
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> (ttyUSB0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled...
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started...
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete.
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <warn> GSM connection failed: (32) Sending command failed: 'Resource temporarily unavailable'
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <info> (ttyUSB0): device state change: prepare -> failed (reason 'unknown') [40 120 1]
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <warn> Activation (ttyUSB0) failed.
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <info> (ttyUSB0): device state change: failed -> disconnected (reason 'none') [120 30 0]
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <info> (ttyUSB0): deactivating device (reason: 0).
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: nm_system_iface_flush_routes: assertion `ifindex > 0' failed
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: nm_system_iface_flush_addresses: assertion `ifindex > 0' failed

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