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Working on kubuntu saucy 64bit. Trying to connect to the internet via an
UMTS phone that is DUN capable over bluetooth (Samsung galaxy)

Setting up things manually, i.e.

bring up rfcomm via rfcomm command
use kppp to connect

the phone can provide internet access just fine.

Trying to do the same with network-manager does not work.

I have the profile set up in a file in /etc/NetworkManager/system-
connections/

when I try to connect, things start just fine. Connection confirmation
is asked on the phone and the rfcomm interface is brought up. However,
network manager says that it fails to find the modem. In syslog I get:

Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) starting connection 'TIM Maxxi Alice/Internet'
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> (6C:83:36:31:D9:FE): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) Stage 1 of 5 (Device Prepare) scheduled...
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) Stage 1 of 5 (Device Prepare) started...
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) Stage 2 of 5 (Device Configure) scheduled...
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) Stage 1 of 5 (Device Prepare) complete.
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) Stage 2 of 5 (Device Configure) starting...
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> (6C:83:36:31:D9:FE): device state change: prepare -> config (reason 'none') [40 50 0]
Mar 31 20:44:00 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE) Stage 2 of 5 (Device Configure) complete.
Mar 31 20:44:05 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE 6C:83:36:31:D9:FE/bluetooth) Stage 2 of 5 (Device Configure) successful.  Will connect via DUN.
Mar 31 20:44:05 zagar NetworkManager[1149]: <info> Activation (6C:83:36:31:D9:FE/bluetooth) Stage 2 of 5 (Device Configure) waiting for modem to appear.
Mar 31 20:44:36 zagar NetworkManager[1149]: <info> (6C:83:36:31:D9:FE): device state change: config -> failed (reason 'modem-not-found') [50 120 43]
Mar 31 20:44:36 zagar NetworkManager[1149]: <warn> Activation (6C:83:36:31:D9:FE) failed for connection 'TIM Maxxi Alice/Internet'
Mar 31 20:44:36 zagar NetworkManager[1149]: <info> (6C:83:36:31:D9:FE): device state change: failed -> disconnected (reason 'none') [120 30 0]
Mar 31 20:44:36 zagar NetworkManager[1149]: <info> (6C:83:36:31:D9:FE): deactivating device (reason 'none') [0]

Note that after the 'device configure' phase, giving the rfcomm command
on the console shows the rfcomm interface up and alive.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: network-manager 0.9.8.0-0ubuntu22
ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5
Uname: Linux 3.11.0-19-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
Date: Mon Mar 31 20:48:29 2014
EcryptfsInUse: Yes
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2013-12-12 (108 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
IpRoute:
 default via 10.143.1.254 dev eth1  proto static 
 10.143.0.0/19 dev eth1  proto kernel  scope link  src 10.143.20.139  metric 1
MarkForUpload: True
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE     TYPE              STATE         DBUS-PATH                                  
 6C:83:36:31:D9:FE bluetooth         disconnected  /org/freedesktop/NetworkManager/Devices/9  
 eth1       802-3-ethernet    connected     /org/freedesktop/NetworkManager/Devices/7  
 wlan0      802-11-wireless   disconnected  /org/freedesktop/NetworkManager/Devices/2  
 eth0       802-3-ethernet    unavailable   /org/freedesktop/NetworkManager/Devices/1
nmcli-nm:
 RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN      
 running         0.9.8.0    connected       enabled       enabled         enabled    enabled         disabled

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug saucy third-party-packages
-- 
Network manager fails to find bluetooth 'modem' for dun connection in saucy and trusty
https://bugs.launchpad.net/bugs/1300386
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