3gmodem not detected

[corosus]

Hi

i added a 3g modem to my thinkpad x200S recently

it worked for a day, and then stopped working
running debian sid

uname -a
Linux irregularapocalypse 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1 (2015-05-24) x86_64 GNU/Linux

i suspect it's not a hardware problem since i see this in dmesg

dmesg | grep cdc
[ 4.361215] cdc_acm 6-4:1.1: ttyACM0: USB ACM device
[ 4.365044] cdc_wdm 6-4:1.5: cdc-wdm0: USB WDM device
[ 4.365144] cdc_wdm 6-4:1.6: cdc-wdm1: USB WDM device
[ 4.365180] usbcore: registered new interface driver cdc_wdm
[ 4.365774] cdc_acm 6-4:1.3: ttyACM1: USB ACM device
[ 4.367811] cdc_acm 6-4:1.9: ttyACM2: USB ACM device
[ 4.370063] usbcore: registered new interface driver cdc_acm
[ 4.370069] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 4.394577] cdc_ether 6-4:1.7 wwan0: register 'cdc_ether' at usb-0000:00:1d.7-4, Mobile Broadband Network Device, 02:80:37:ec:02:00
[ 4.394638] usbcore: registered new interface driver cdc_ether
[ 6.296279] cdc_ether 6-4:1.7 wwx028037ec0200: unregister 'cdc_ether' usb-0000:00:1d.7-4, Mobile Broadband Network Device



i tried with 2 different sims .. same result, so i know it's not the simcard


does anyone have an idea on what this might be ?


greetz

corosus

[Punkoivan]

Hi.
So, may be it affects with system update? But, Debian..
So, I can recommend to you install modem-manager-gui or just mmcli (modem-manager for console) and try to use it to detect your modem.
Ivan

[Lomax]

I'm having the same problem, also tested with multiple (working) SIMs. It was working on 'buntu 12.04 but not since upgrading to 'buntu 14.04. I have lived with using my phone as an AP when out and about, but now I really need to get this working! I had hoped that a clean upgrade to 16.04 would resolve the issue, but alas the issue remains exactly the same; the CDC is detected and the driver is loaded during boot, but shortly thereafter the device is unregistered:

Code: Select all

[    9.649934] cdc_wdm 2-1.4:1.5: cdc-wdm0: USB WDM device
[    9.650166] cdc_wdm 2-1.4:1.6: cdc-wdm1: USB WDM device
[    9.650884] cdc_acm 2-1.4:1.1: ttyACM0: USB ACM device
[    9.650926] usbcore: registered new interface driver cdc_wdm
[    9.654661] cdc_acm 2-1.4:1.3: ttyACM1: USB ACM device
[    9.655259] cdc_acm 2-1.4:1.9: ttyACM2: USB ACM device
[    9.655598] usbcore: registered new interface driver cdc_acm
[    9.655601] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    9.668138] cdc_wdm 2-1.4:1.6: wdm_int_callback - 0 bytes
[    9.678536] cdc_ether 2-1.4:1.7 wwan0: register 'cdc_ether' at usb-0000:00:1d.0-1.4, Mobile Broadband Network Device, 02:80:37:ec:02:00
[    9.678728] usbcore: registered new interface driver cdc_ether
[    9.681149] cdc_ether 2-1.4:1.7 wwp0s29u1u4i7: renamed from wwan0
[    9.686126] cdc_wdm 2-1.4:1.5: wdm_int_callback - 0 bytes
[   14.022625] cdc_ether 2-1.4:1.7 wwp0s29u1u4i7: unregister 'cdc_ether' usb-0000:00:1d.0-1.4, Mobile Broadband Network Device

Getting a little desperate here, so very grateful for any suggestions!

[Lomax]

Digging a little deeper in dmesg shows that the event immediately preceding the CDC unregister is a USB disconnect:

Code: Select all

67092-[   14.019744] usb 2-1.4: USB disconnect, device number 3
67150:[   14.022625] cdc_ether 2-1.4:1.7 wwp0s29u1u4i7: unregister 'cdc_ether' usb-0000:00:1d.0-1.4, Mobile Broadband Network Device

This may or may not be relevant.

[w0qj]

Any update on this issue?
Would be very interested in this matter, many thanks!

- - - - - - - - -
A significant number of our Thinkpad notebook computers have built-in OEM Mobile Broadband cards (WWAN);
this is why we stuck with Thinkpad (along with the great TrackPoint!).

But it is also Linux problems such as these (3G modem not detected error) that prevents us from jumping from Win10 to Linux!

[Dekks]

apt install modem-manager-gui

that package worked for me in arch.

[Lomax]

*bump*ing this in the hope someone can help. And no, installing Modem Manager GUI won't make the slightest bit of difference, since the modem is "unregistered" by the kernel during boot. The question is why this happens...

[Lomax]

Here is the relevant Syslog output:

Code: Select all

Nov 27 16:00:52 thinkpad ModemManager[1029]: <info>  ModemManager (version 1.4.12) starting in system bus...
Nov 27 16:00:52 thinkpad mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4"
Nov 27 16:00:53 thinkpad kernel: [    9.565703] cdc_wdm 2-1.4:1.5: cdc-wdm0: USB WDM device
Nov 27 16:00:53 thinkpad kernel: [    9.566208] cdc_wdm 2-1.4:1.6: cdc-wdm1: USB WDM device
Nov 27 16:00:53 thinkpad kernel: [    9.566384] usbcore: registered new interface driver cdc_wdm
Nov 27 16:00:53 thinkpad kernel: [    9.583566] cdc_wdm 2-1.4:1.6: wdm_int_callback - 0 bytes
Nov 27 16:00:53 thinkpad kernel: [    9.600561] cdc_wdm 2-1.4:1.5: wdm_int_callback - 0 bytes
Nov 27 16:00:53 thinkpad kernel: [    9.600692] cdc_acm 2-1.4:1.1: ttyACM0: USB ACM device
Nov 27 16:00:53 thinkpad kernel: [    9.605809] cdc_acm 2-1.4:1.3: ttyACM1: USB ACM device
Nov 27 16:00:53 thinkpad kernel: [    9.610154] cdc_acm 2-1.4:1.9: ttyACM2: USB ACM device
Nov 27 16:00:53 thinkpad kernel: [    9.614911] usbcore: registered new interface driver cdc_acm
Nov 27 16:00:53 thinkpad kernel: [    9.614918] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
Nov 27 16:00:53 thinkpad kernel: [    9.692798] cdc_ether 2-1.4:1.7 wwan0: register 'cdc_ether' at usb-0000:00:1d.0-1.4, Mobile Broadband Network Device, 02:80:37:ec:02:00
Nov 27 16:00:53 thinkpad kernel: [    9.705817] usbcore: registered new interface driver cdc_ether
Nov 27 16:00:53 thinkpad kernel: [    9.714631] cdc_ether 2-1.4:1.7 wwp0s29u1u4i7: renamed from wwan0
Nov 27 16:00:53 thinkpad NetworkManager[1013]: <info>  [1511798453.6719] devices added (path: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.7/net/wwp0s29u1u4i7, iface: wwp0s29u1u4i7)
Nov 27 16:00:53 thinkpad NetworkManager[1013]: <info>  [1511798453.6731] device added (path: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.7/net/wwp0s29u1u4i7, iface: wwp0s29u1u4i7): no ifupdown configuration found.
Nov 27 16:00:53 thinkpad NetworkManager[1013]: <info>  [1511798453.7136] ModemManager available in the bus
Nov 27 16:00:53 thinkpad NetworkManager[1013]: <info>  [1511798453.8911] device (wlp2s0): state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
Nov 27 16:00:54 thinkpad ModemManager[1029]: <info>  Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:19.0': not supported by any plugin
Nov 27 16:00:54 thinkpad ModemManager[1029]: <info>  Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:1c.4/0000:02:00.0': not supported by any plugin
Nov 27 16:00:55 thinkpad ModemManager[1029]: <info>  Creating modem with plugin 'Ericsson MBM' and '6' ports
Nov 27 16:00:55 thinkpad ModemManager[1029]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4' successfully created
Nov 27 16:00:58 thinkpad kernel: [   14.270765] usb 2-1.4: USB disconnect, device number 3
Nov 27 16:00:58 thinkpad ModemManager[1029]: <info>  (tty/ttyACM0): released by modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
Nov 27 16:00:58 thinkpad ModemManager[1029]: <warn>  Modem couldn't be initialized: couldn't load current capabilities: Failed to determine modem capabilities.
Nov 27 16:00:58 thinkpad kernel: [   14.278942] cdc_ether 2-1.4:1.7 wwp0s29u1u4i7: unregister 'cdc_ether' usb-0000:00:1d.0-1.4, Mobile Broadband Network Device
Nov 27 16:00:58 thinkpad ModemManager[1029]: <info>  (usbmisc/cdc-wdm0): released by modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
Nov 27 16:00:58 thinkpad ModemManager[1029]: <info>  (tty/ttyACM1): released by modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
Nov 27 16:00:58 thinkpad NetworkManager[1013]: <info>  [1511798458.0584] manager: (cdc-wdm1): new Broadband device (/org/freedesktop/NetworkManager/Devices/3)
Nov 27 16:00:58 thinkpad NetworkManager[1013]: <info>  [1511798458.0593] device (cdc-wdm1): state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Nov 27 16:00:58 thinkpad ModemManager[1029]: <info>  (usbmisc/cdc-wdm1): released by modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
Nov 27 16:00:58 thinkpad NetworkManager[1013]: <info>  [1511798458.0601] device (cdc-wdm1): modem state 'unknown'
Nov 27 16:00:58 thinkpad NetworkManager[1013]: <warn>  [1511798458.0604] (cdc-wdm1): failed to retrieve SIM object: No SIM object available
Nov 27 16:00:58 thinkpad NetworkManager[1013]: <info>  [1511798458.0681] devices removed (path: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.7/net/wwp0s29u1u4i7, iface: wwp0s29u1u4i7)
Nov 27 16:00:58 thinkpad ModemManager[1029]: <info>  (net/wwp0s29u1u4i7): released by modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
Nov 27 16:00:58 thinkpad ModemManager[1029]: <info>  (tty/ttyACM2): released by modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
Nov 27 16:00:58 thinkpad NetworkManager[1013]: <info>  [1511798458.0966] device (cdc-wdm1): state change: unavailable -> unmanaged (reason 'removed') [20 10 36]