Did this issue start happening after an update/upgrade? Was there a
kernel version where you were not having this particular problem? This
will help determine if the problem you are seeing is the result of a
regression, and when this regression was introduced.   If this is a
regression, we can perform a kernel bisect to identify the commit that
introduced the problem.

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

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https://bugs.launchpad.net/bugs/1627114

Title:
  WiFi is not detected for Intel Dual BandWireless-AC 3168

Status in linux package in Ubuntu:
  Triaged

Bug description:
  I have HP Pavilion 15 AU113TX laptop, which comes with Intel Core i5
  7200U Kaby Lake processor and uses Intel Dual BandWireless-AC 3168
  WiFi + Bluetooth Combo adapter, I have installed Ubuntu GNOME 16.04.1
  on it, and it is unable to detect WiFi adapter.

  Upon running "lspci -nnk | grep -A2", I'm getting following
  information about adapter.

  028005:00.0 Network controller [0280]: Intel Corporation Device [8086:24fb] 
(rev 10)
          DeviceName: Intel Dual BandWireless-AC 3168 802.11 ac 1x1 WiFi + BT 
4.0 Combo Adapter
          Subsystem: Intel Corporation Device [8086:2110]

  But running "rfkill list all", I see following output (WiFi missing
  there).

  0: hci0: Bluetooth
          Soft blocked: no
          Hard blocked: no

  And here's the output for "dmesg | grep iwl"

  [   13.570633] iwlwifi 0000:05:00.0: Unsupported splx structure
  [   13.635662] iwlwifi 0000:05:00.0: Direct firmware load for 
iwlwifi-3168-21.ucode failed with error -2
  [   13.650761] iwlwifi 0000:05:00.0: Direct firmware load for 
iwlwifi-3168-20.ucode failed with error -2
  [   13.650765] iwlwifi 0000:05:00.0: no suitable firmware found!

  Output for "ls -al /lib/firmware | grep 3168" Under both Stock Kernel
  4.4.0-36.

  -rw-r--r--  1 root root   33168 Jul 13 01:03 hfi1_pcie.fw
  --- 
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: Pantheon
  DistroRelease: elementary 0.4
  InstallationDate: Installed on 2016-09-21 (2 days ago)
  InstallationMedia: elementary OS 0.4 "Loki" - Stable amd64 (20160909)
  IwConfig:
   lo        no wireless extensions.
   
   eno1      no wireless extensions.
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 8087:0aa7 Intel Corp. 
   Bus 001 Device 002: ID 1bcf:2c87 Sunplus Innovation Technology Inc. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: HP HP Pavilion Notebook
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-38-generic 
root=UUID=38aa8628-4aa2-48e4-92bd-6cd3b33b0770 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-38-generic N/A
   linux-backports-modules-4.4.0-38-generic  N/A
   linux-firmware                            1.161
  RfKill:
   0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
  Tags:  loki
  Uname: Linux 4.4.0-38-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 07/19/2016
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.14
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 8216
  dmi.board.vendor: HP
  dmi.board.version: 83.13
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnInsyde:bvrF.14:bd07/19/2016:svnHP:pnHPPavilionNotebook:pvrType1ProductConfigId:rvnHP:rn8216:rvr83.13:cvnHP:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion Notebook
  dmi.product.version: Type1ProductConfigId
  dmi.sys.vendor: HP

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