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[Bug 1361745] Re: X240 Sierra LTE modem requires cdc_ncm prefer_mbim=Y

 

** Changed in: linux (Ubuntu)
       Status: Triaged => Confirmed

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https://bugs.launchpad.net/bugs/1361745

Title:
  X240 Sierra LTE modem requires cdc_ncm prefer_mbim=Y

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  On a Lenovo X240, the Sierra EM7345 LTE modem (1199:a001) requires
  that the cdc_ncm module be loaded with: prefer_mbim=Y before
  NetworkManager sees it.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-34-generic 3.13.0-34.60
  ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
  Uname: Linux 3.13.0-34-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
  AudioDevicesInUse:
   USER PID ACCESS COMMAND
   /dev/snd/controlC1:  jpds       2097 F.... pulseaudio
   /dev/snd/controlC0:  jpds       2097 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Aug 26 16:06:00 2014
  HibernationDevice: RESUME=UUID=6d276746-821e-47c3-b2d9-16b936682dd1
  InstallationDate: Installed on 2014-08-26 (0 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: LENOVO 20ALCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-34-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-34-generic N/A
   linux-backports-modules-3.13.0-34-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/24/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GIET75WW (2.25 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20ALCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGIET75WW(2.25):bd06/24/2014:svnLENOVO:pn20ALCTO1WW:pvrThinkPadX240:rvnLENOVO:rn20ALCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20ALCTO1WW
  dmi.product.version: ThinkPad X240
  dmi.sys.vendor: LENOVO

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References