I have the same problem as Hamish.
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https://bugs.launchpad.net/bugs/1183197
Title:
Unable to connect to wwan on lenovo x1 carbon
Status in “network-manager” package in Ubuntu:
Confirmed
Bug description:
network manager fails to establish a connection with the wwan on my lenovo x1
carbon.
I've disabled mbim using "options cdc_ncm prefer_mbim=0", so the driver
indicated by network manager is cdc_acm.
When I try to make the connection, the process remains stuck at "Preparing to
connect".
In the syslog I find the following (GSM connection failed: (32) Busy) :
May 21 20:11:24 x1 modem-manager[11921]: <debug> [1369167084.070302]
[mm-at-serial-port.c:334] debug_log(): (ttyACM0): --> 'AT*ENAP?<CR>'
May 21 20:11:24 x1 modem-manager[11921]: <debug> [1369167084.084417]
[mm-at-serial-port.c:334] debug_log(): (ttyACM0): <--
'<CR><LF>*ENAP:2,""<CR><LF>'
May 21 20:11:24 x1 modem-manager[11921]: <debug> [1369167084.085541]
[mm-at-serial-port.c:334] debug_log(): (ttyACM0): <-- '<CR><LF>OK<CR><LF>'
May 21 20:11:24 x1 NetworkManager[11930]: <warn> GSM connection failed: (32)
Busy
May 21 20:11:24 x1 NetworkManager[11930]: <info> (ttyACM0): device state
change: prepare -> failed (reason 'modem-busy') [40 120 23]
May 21 20:11:24 x1 NetworkManager[11930]: <info> Marking connection 'Mobile
Vikings' invalid.
May 21 20:11:24 x1 NetworkManager[11930]: <warn> Activation (ttyACM0) failed
for connection 'Mobile Vikings'
May 21 20:11:24 x1 NetworkManager[11930]: <info> (ttyACM0): device state
change: failed -> disconnected (reason 'none') [120 30 0]
May 21 20:11:24 x1 NetworkManager[11930]: <info> (ttyACM0): deactivating
device (reason 'none') [0]
Connecting with wvdial allows to establish a connection, as can be seen from
the log below.
--> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
~[7f]}#@!}!}!} }=}#}%B#}%}(}"}'}"}!}$}%\}"}&} } } } }%}&anNBK{~
--> Carrier detected. Waiting for prompt.
~[7f]}#@!}!}"} }=}#}%B#}%}(}"}'}"}!}$}%\}"}&} } } } }%}&anNBx!~
--> PPP negotiation detected.
--> Starting pppd at Thu May 23 05:40:08 2013
--> Pid of pppd: 18795
--> Using interface ppp0
--> pppd: �[7f]
--> pppd: �[7f]
--> pppd: �[7f]
--> pppd: �[7f]
--> pppd: �[7f]
--> pppd: �[7f]
--> local IP address 10.44.86.76
--> pppd: �[7f]
--> remote IP address 10.64.64.64
--> pppd: �[7f]
--> primary DNS address 217.72.230.1
--> pppd: �[7f]
--> secondary DNS address 217.72.230.129
--> pppd: �[7f]
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: network-manager 0.9.8.0-0ubuntu6
Uname: Linux 3.8.4-030804-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Thu May 23 05:31:16 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2013-04-28 (25 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
IpRoute:
default via 192.168.42.129 dev usb0 proto static
169.254.0.0/16 dev usb0 scope link metric 1000
192.168.24.0/24 dev vmnet1 proto kernel scope link src 192.168.24.1
192.168.42.0/24 dev usb0 proto kernel scope link src 192.168.42.17
metric 1
192.168.245.0/24 dev vmnet8 proto kernel scope link src 192.168.245.1
MarkForUpload: True
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
TERM=linux
PATH=(custom, no user)
LANG=en_US.UTF-8
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
usb0 802-3-ethernet connected
/org/freedesktop/NetworkManager/Devices/8
ttyACM0 gsm disconnected
/org/freedesktop/NetworkManager/Devices/7
wlan0 802-11-wireless disconnected
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE
WIFI WWAN-HARDWARE WWAN
running 0.9.8.0 connected enabled enabled
enabled enabled disabled
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