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[Bug 1465178] Re: Microcode SW error detected. Restarting 0x2000000 on connecting to AC network with iwlwifi-7265-ucode-


Tom Fifield, as per http://support.lenovo.com/us/en/products/Laptops-
and-netbooks/ThinkPad-X-Series-laptops/ThinkPad-X250? an update to your
computer's buggy and outdated BIOS is available (1.17). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?

For more on BIOS updates and linux, please see

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement or not.
3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-1.17

** Attachment removed: "ProcEnviron.txt"

** Attachment removed: "Dependencies.txt"

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

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  Microcode SW error detected.  Restarting 0x2000000 on connecting to AC
  network with iwlwifi-7265-ucode-

Status in linux package in Ubuntu:

Bug description:
  When trying to connect to an 802.11AC network using an Intel 7265 with
  firmware iwlwifi-7265-ucode- on kernel 3.16.0-38-generic
  #52~14.04.1-Ubuntu, the error " Microcode SW error detected.
  Restarting 0x2000000." is received, the card crashes and can't connect
  to the network.

  The same card/driver/firmware combination performs well on 2.4GHz
  networks, and also 802.11a.

  Call trace:

  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
   /dev/snd/controlC1:  fifieldt   2135 F.... pulseaudio
   /dev/snd/controlC0:  fifieldt   2135 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=a83453a5-d150-481d-b8f4-800d6290a06a
  InstallationDate: Installed on 2015-04-11 (256 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
   Bus 001 Device 003: ID 5986:0366 Acer, Inc
   Bus 001 Device 002: ID 8087:8001 Intel Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20CMA00ETW
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-55-generic root=UUID=c31100a6-e1cc-4df6-aeb7-521edf7c6c23 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-55.74~14.04.1-generic 3.16.7-ckt19
   linux-restricted-modules-3.16.0-55-generic N/A
   linux-backports-modules-3.16.0-55-generic  N/A
   linux-firmware                             1.127.19
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.16.0-55-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/01/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET27W (1.04 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CMA00ETW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET27W(1.04):bd12/01/2014:svnLENOVO:pn20CMA00ETW:pvrThinkPadX250:rvnLENOVO:rn20CMA00ETW:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CMA00ETW
  dmi.product.version: ThinkPad X250
  dmi.sys.vendor: LENOVO

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