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[Bug 1503438] Re: "Wi-fi disabled by hardware switch" permanently on Lenovo Yoga 2 13

 

I managed to get Win8 back into it again so I could update the BIOS.
It's the latest one now (1.17).

Bug persists though :(

One thing I think I should mention is that between its Vivid (when all
was working fine) and its Wily (what I have now) incarnations I had it
sent back to Lenovo factory for repairs due to a broken USB 3.0 port
(the blue tab broke off, common issue with this model).  So they
repaired the USB port but also reflashed/reset the BIOS and HDD as well
(as usual). It's the same motherboard though as the mac address remained
the same.

Output of "sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date":
96CN31WW(V1.17)
07/21/2015

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

** Tags removed: bios-outdated-1.17

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https://bugs.launchpad.net/bugs/1503438

Title:
  "Wi-fi disabled by hardware switch" permanently on Lenovo Yoga 2 13

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I've a Lenovo Yoga 2 13" and installed Wily from a thumb drive (no
  upgrade).

  Can't use wifi at all. The indicator panel says "Wi-fi disabled by
  hardware switch". Pressing the "airplane mode" key makes no
  difference.

  Once I blacklisted ideapad_laptop kernel module, I did get wi-fi back.
  But after a couple of minutes it would become slow and unreliable to
  be point of being unusable.

  It came as a surprise as I was previously using Vivid on this laptop
  and wi-fi worked out of the box with it, never giving me any problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-14-generic 4.2.0-14.16
  ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2
  Uname: Linux 4.2.0-14-generic x86_64
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  dandrader   2057 F.... pulseaudio
   /dev/snd/controlC0:  dandrader   2057 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Oct  6 18:13:39 2015
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=75aae517-7579-4767-950c-75b06face626
  InstallationDate: Installed on 2015-10-02 (4 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150918)
  MachineType: LENOVO ZIVY0
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-14-generic root=UUID=ede92ad6-f711-45c1-9c1a-68ba94618135 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-14-generic N/A
   linux-backports-modules-4.2.0-14-generic  N/A
   linux-firmware                            1.148
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/16/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 96CN29WW(V1.15)
  dmi.board.asset.tag: 31900002WIN8 PRO
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900002WIN8 PRO MBR IPG
  dmi.chassis.asset.tag: 31900002WIN8 PRO
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: INVALID
  dmi.modalias: dmi:bvnLENOVO:bvr96CN29WW(V1.15):bd10/16/2014:svnLENOVO:pnZIVY0:pvrINVALID:rvnLENOVO:rnINVALID:rvr31900002WIN8PROMBRIPG:cvnLENOVO:ct10:cvrINVALID:
  dmi.product.name: ZIVY0
  dmi.product.version: INVALID
  dmi.sys.vendor: LENOVO

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