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[Bug 1208976] Re: Wireless card stopped working after last kernel upgrade on thinkpad x1 carbon laptop


Can you see if the iwlwifi module can be loaded?  This can be done by running:
 sudo modprobe -v iwlwifi

We can perform a kernel bisect to identify the commit that introduced
this regression.  Can you test the following kernels and post back the
first that exhibits this bug: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.2-raring/ http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.3-raring/ http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.4-raring/

You don't have to test every kernel, just up to the first one that has
the bug.

It might also be good to test the latest 3.8 upstream kernel to see if this is already fixed:

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  Wireless card stopped working after last kernel upgrade on thinkpad x1
  carbon laptop

Status in “linux” package in Ubuntu:

Bug description:
  Seems to be related to the btusb module, see error messages at the end
  of attached dmesg output. Works fine with kernel version 3.8.0-26.38 .

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-27-generic 3.8.0-27.40
  ProcVersionSignature: Ubuntu 3.8.0-27.40-generic
  Uname: Linux 3.8.0-27-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Date: Tue Aug  6 21:35:37 2013
  HibernationDevice: RESUME=UUID=be6e1a5d-4b39-44b1-9894-6e318fe7e3a8
   wwan0     no wireless extensions.
   eth0      no wireless extensions.
   lo        no wireless extensions.
  MachineType: LENOVO 3460D4G
  MarkForUpload: True
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-27-generic root=/dev/mapper/hostname--vg-root ro splash quiet vt.handoff=7
   linux-restricted-modules-3.8.0-27-generic N/A
   linux-backports-modules-3.8.0-27-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/04/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G6ET93WW (2.53 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 3460D4G
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG6ET93WW(2.53):bd02/04/2013:svnLENOVO:pn3460D4G:pvrThinkPadX1Carbon:rvnLENOVO:rn3460D4G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 3460D4G
  dmi.product.version: ThinkPad X1 Carbon
  dmi.sys.vendor: LENOVO

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