Did some digging around and compared the plasma widget configuration
files ($HOME/.kde/share/apps/networkmanagement/connections) and previous
knetworkmanager configuration files
($HOME/.kde/share/config/knetworkmanagerrc).
The only obvious error in /var/log/daemon.log when trying to connect
using my Huawei E220 mobile broadband modem is the following snippet:
--------------------------
Apr 13 02:44:59 ladyjaye NetworkManager: <info> (ttyUSB1): ignoring due to
lack of mobile broadband capabilties
Apr 13 02:44:59 ladyjaye nm-system-settings: SCPlugin-Ifupdown: device added
(udi:
/org/freedesktop/Hal/devices/usb_device_12d1_1003_noserial_if0_serial_usb_0,
iface: (null)): iface not found
Apr 13 02:44:59 ladyjaye NetworkManager: <info> (ttyUSB0): found serial port
(udev:GSM hal:GSM)
Apr 13 02:44:59 ladyjaye NetworkManager: <info> (ttyUSB0): new Modem device
(driver: 'option')
Apr 13 02:44:59 ladyjaye NetworkManager: <info> (ttyUSB0): exported as
/org/freedesktop/Hal/devices/usb_device_12d1_1003_noserial_if0_serial_usb_0
Apr 13 02:45:04 ladyjaye NetworkManager: <info> (ttyUSB0): device state
change: 1 -> 2
Apr 13 02:45:04 ladyjaye NetworkManager: <info> (ttyUSB0): deactivating device
(reason: 2).
Apr 13 02:45:04 ladyjaye NetworkManager:
nm_system_device_flush_ip4_routes_with_iface: assertion `iface_idx >= 0' failed
Apr 13 02:45:04 ladyjaye NetworkManager:
nm_system_device_flush_ip4_addresses_with_iface: assertion `iface_idx >= 0'
failed
Apr 13 02:45:04 ladyjaye NetworkManager: <info> (ttyUSB0): device state
change: 2 -> 3
--------------------------
Googling for the search term
"nm_system_device_flush_ip4_routes_with_iface: assertion `iface_idx >=
0' failed", I found the following page:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/289690
The findings in that page seems to indicate that the modem was not
unlocked by NetworkManager using the correct PIN (or any PIN at all). So
that led me to thinking maybe this same error is affecting the plasma
widget.
Looking through my configuration file for my mobile broadband
connection, I noticed that there the parameter for the PIN was defined
in knetworkmanagerrc but was stored in kwallet instead for the plasma
widget.
I'm wondering if it's possible that the plasma widget fails to submit
the PIN information to NetworkManager to unlock the modem leading to
this issue. I know that the maintainer of this package may not have the
resources to test using mobile broadband modems but if this clue leads
to something we'd be much happier for it :)
--
kubuntu jaunty plasmoid-network-manager can't use mobile broadband
https://bugs.launchpad.net/bugs/334122
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