Re: ModemManager and e160

[Dan Williams <dcbw redhat com>]

On Fri, 2010-04-02 at 10:41 +0200, Georg Grabler wrote:
> Dear .. all :-).
> 
> 
> I've been using Network Manager (KNetworkManager) for quite some time
> now. Due to a problem with my huawei e220 (instability), I got myself
> a huawei e160.

The E220 is well-known to require firmware updates to be fully stable
with Linux, not just NM.

> Lately I installed networkmanager 0.8 and modemmanager 0.3. Since
> that, my modem is still found, but it seems as if it's not initialized
> properly. I can activate it / connect, but activating the state
> changes to connecting (Activating), but immediately (1 second to five
> seconds?) switches back to a state as if i never tried to connect / as
> if it couldn't get a connection.

The best thing to do is to follow the directions here:

http://live.gnome.org/NetworkManager/Debugging

under the section "Debugging NetworkManager 0.8.x 3G connections".  We
specifically want the modem-manager --debug logs, which should tell us
what is going wrong with the device.  If you can get those, we can debug
further and probably figure out what's going wrong.

Dan

> 
> Note: With the e220 it works properly, so I think it's probably some
> kind of initialization problem (in modemmanager?). If I try it with
> wvdial, it works fine.
> 
> 
> The modem gets in an enough unusable state, that I can't connect at
> all anymore (not with wvdial or with networkmanager). I've tried both,
> KNetworkManager and gnome networkmanager applet.
> 
> 
> Is there any way to backtrace it properly / provide help on this? I've
> tried making a bug report, but for some reason the gnome bugtracker
> won't send me my activation e-mail (grml).
> 
> 
> 
> Output I could get:
> NetworkManager: <info>  Activation (ttyUSB0) starting connection
> 'bob.at'
> NetworkManager: <info>  (ttyUSB0): device state change: 3 -> 4 (reason
> 0)
> NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device
> Prepare) scheduled...
> NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device
> Prepare) started...
> NetworkManager: <info>  (ttyUSB0): device state change: 4 -> 6 (reason
> 0)
> NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device
> Prepare) complete.
> NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device
> Prepare) scheduled...
> NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device
> Prepare) started...
> NetworkManager: <info>  (ttyUSB0): device state change: 6 -> 4 (reason
> 0)
> NetworkManager: <info>  Activation (ttyUSB0) Stage 1 of 5 (Device
> Prepare) complete.
> NetworkManager: <WARN>  stage1_prepare_done(): GSM modem connection
> failed: (32) No cause information available
> NetworkManager: <info>  (ttyUSB0): device state change: 4 -> 9 (reason
> 1)
> NetworkManager: <info>  Marking connection 'bob.at' invalid.
> NetworkManager: <info>  Activation (ttyUSB0) failed.
> NetworkManager: <info>  (ttyUSB0): device state change: 9 -> 3 (reason
> 0)
> NetworkManager: <info>  (ttyUSB0): deactivating device (reason: 0).
> 
> 
> Kind regards,
> Georg
> 
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