aljosa, thank you for reporting this and helping make Ubuntu better.

To clarify, do you actually have a usability issue with the WiFi?

** Tags added: latest-bios-cdcn30ww

** Description changed:

- Lenovo Y700-17ISK (Intel Core i7-6700HQ/RAM 16GB/SSD 512GB/Nvidia GTX960M 4GB)
- Operating system: Ubuntu 16.04 (xenial-desktop-amd64.iso 04-Mar-2016, kernel 
4.4.0-10-generic, nvidia 361.28)
- 
- After installing Xenial, I installed all available updates too, and then I 
examined detally dmesg output in order to see if everything is ok between 
Ubuntu and my new notebook.
- One month ago, wifi didn't work - but now this issue seems solved, at least 
partially...
- 
- 
  Current dmesg output:
- 
  [    1.869368] iwlwifi 0000:08:00.0: Direct firmware load for 
iwlwifi-8000C-19.ucode failed with error -2
  [    1.869382] iwlwifi 0000:08:00.0: Direct firmware load for 
iwlwifi-8000C-18.ucode failed with error -2
  [    1.869392] iwlwifi 0000:08:00.0: Direct firmware load for 
iwlwifi-8000C-17.ucode failed with error -2
  [    1.869589] iwlwifi 0000:08:00.0: Unsupported splx structure
- 
- 
- I'm not an expert so I'm not sure about all (potential) consequences of this 
firmware problem, but I know for certain that this problematic lines shouldn't 
exist inside my dmesg output.
- 
- When compared to other two Asus notebooks (both with Xenial installed on
- ssd), my new Lenovo boots up much slower due to some other issues too:
- 
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1547934
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553685
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553687
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553688
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553690
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553691
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553693
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553694
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553941
- 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-10-generic 4.4.0-10.25
  ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3
  Uname: Linux 4.4.0-10-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  aljosa     1763 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Mar  7 10:25:42 2016
  HibernationDevice: RESUME=UUID=ac022671-63df-40ae-bffe-66fff3b35125
  InstallationDate: Installed on 2016-03-05 (1 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160304)
  MachineType: LENOVO 80Q0
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-10-generic.efi.signed 
root=UUID=aa4325c4-4b4c-4372-b8ca-a66c3e5b2aa6 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-10-generic N/A
   linux-backports-modules-4.4.0-10-generic  N/A
   linux-firmware                            1.156
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/31/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: CDCN30WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: Allsparks 7A
  dmi.board.vendor: LENOVO
  dmi.board.version: NO DPK
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo ideapad Y700-17ISK
  dmi.modalias: 
dmi:bvnLENOVO:bvrCDCN30WW:bd01/31/2016:svnLENOVO:pn80Q0:pvrLenovoideapadY700-17ISK:rvnLENOVO:rnAllsparks7A:rvrNODPK:cvnLENOVO:ct10:cvrLenovoideapadY700-17ISK:
  dmi.product.name: 80Q0
  dmi.product.version: Lenovo ideapad Y700-17ISK
  dmi.sys.vendor: LENOVO

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

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

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https://bugs.launchpad.net/bugs/1553941

Title:
  Lenovo Y700-17ISK: Direct firmware load for iwlwifi failed

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Current dmesg output:
  [    1.869368] iwlwifi 0000:08:00.0: Direct firmware load for 
iwlwifi-8000C-19.ucode failed with error -2
  [    1.869382] iwlwifi 0000:08:00.0: Direct firmware load for 
iwlwifi-8000C-18.ucode failed with error -2
  [    1.869392] iwlwifi 0000:08:00.0: Direct firmware load for 
iwlwifi-8000C-17.ucode failed with error -2
  [    1.869589] iwlwifi 0000:08:00.0: Unsupported splx structure

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-10-generic 4.4.0-10.25
  ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3
  Uname: Linux 4.4.0-10-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  aljosa     1763 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Mar  7 10:25:42 2016
  HibernationDevice: RESUME=UUID=ac022671-63df-40ae-bffe-66fff3b35125
  InstallationDate: Installed on 2016-03-05 (1 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160304)
  MachineType: LENOVO 80Q0
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-10-generic.efi.signed 
root=UUID=aa4325c4-4b4c-4372-b8ca-a66c3e5b2aa6 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-10-generic N/A
   linux-backports-modules-4.4.0-10-generic  N/A
   linux-firmware                            1.156
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/31/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: CDCN30WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: Allsparks 7A
  dmi.board.vendor: LENOVO
  dmi.board.version: NO DPK
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo ideapad Y700-17ISK
  dmi.modalias: 
dmi:bvnLENOVO:bvrCDCN30WW:bd01/31/2016:svnLENOVO:pn80Q0:pvrLenovoideapadY700-17ISK:rvnLENOVO:rnAllsparks7A:rvrNODPK:cvnLENOVO:ct10:cvrLenovoideapadY700-17ISK:
  dmi.product.name: 80Q0
  dmi.product.version: Lenovo ideapad Y700-17ISK
  dmi.sys.vendor: LENOVO

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