2010/7/2 Stéphane Régnier <[email protected]>: > Dear programmer, > > I have difficulties to solve my disconnection problem, I hope you can > help. > > I'm using a 3G usb key, huawei e180, with NetworkManager 0.8 and > ModemManager 0.3. Once connected, without using the network and after > exactly 30 minutes, it disconnects and never comes back until I restart > ModemManager. > Looking to ModemManager traces I found : > ** Message: (ttyUSB1) closing serial device... > ** Message: (Huawei): GSM > modem /sys/devices/platform/ehci-omap.0/usb1/1-1 claimed port ttyUSB1 > ** Message: (ttyUSB0) closing serial device... > ** Message: Modem /org/freedesktop/ModemManager/Modems/0: state changed > (connected -> disconnecting) > ** Message: Modem /org/freedesktop/ModemManager/Modems/0: state changed > (disconnecting -> connected) > ** Message: Modem /org/freedesktop/ModemManager/Modems/0: state changed > (connected -> disconnecting) > ** Message: Modem /org/freedesktop/ModemManager/Modems/0: state changed > (disconnecting -> connected) > > In NetworkManager, traces corresponding to a dbus activate : > NM: <info> Activation (ttyUSB0) starting connection 'bouyguestel' > NM: <info> (ttyUSB0): device state change: 3 -> 4 (reason 0) > NM: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) > scheduled... > NM: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) > started... > NM: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete. > NM: <WARN> stage1_prepare_done(): GSM modem connection failed: (32) > Sending command failed: device is not enabled > NM: <info> (ttyUSB0): device state change: 4 -> 9 (reason 1) > NM: <info> Marking connection 'bouyguestel' invalid. > NM: <info> Activation (ttyUSB0) failed. > NM: <info> (ttyUSB0): device state change: 9 -> 3 (reason 0) > NM: <info> (ttyUSB0): deactivating device (reason: 0). > > And lsof confirms that modem-manager has no ttyUSB opened. > It seems that a modem-manager restart or a simple AT command each 30 > minutes is efficient to keep connection alive but I prefer correct cause > than consequence. It could help me to know the reason (and the answer?) > of that 30 minutes timeout, and where it comes from (3Gkey,ehci,mm,nm?). I use the e180 at openSUSE 11.3 RC2, and found after exactly 10 minutes, it disconnects, when connect it again, it works fine. Provide more modem-manager debug maybe helpful. # killall -TERM NetworkManager # killall -TERM modem-manager # modem-manager --debug In another start the NetworkManager
> Thanks for the help > > Stéphane > > > _______________________________________________ > networkmanager-list mailing list > [email protected] > http://mail.gnome.org/mailman/listinfo/networkmanager-list > _______________________________________________ networkmanager-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/networkmanager-list
