kernel-packages team mailing list archive

[Michael Boratko <boratko@xxxxxxxxx>]

First, I have to mention that after additional testing I found that the
ab1304b986468e3ef698ec4e1cb1a3d4ba080811 commit actually does work, but
for some unknown reason I have to turn off the wifi adapter and turn it
back on after the computer starts.

The commit after that (d88c8958dc13b4e4eb7fc57e3f06dc1c4abc7b1f), which
increases the acceptable firmware API to 10, is actually where the
problem occurs.

This prompted me to look into the firmware itself more. I booted into
the 3.19.0-13.13 generic and did the following:

sudo mv /lib/firmware/iwlwifi-3160-12.ucode /lib/firmware/backup-iwlwifi-3160-12.ucode
sudo mv /lib/firmware/iwlwifi-3160-10.ucode /lib/firmware/backup-iwlwifi-3160-10.ucode

Then I rebooted. I am now using the wifi on the Ubuntu 3.19.0-13.13
kernel, albeit with the older firmware (version 9). Dmesg confirms that
moving these firmware files made the iwlwifi driver fallback to the
earlier version:

# dmesg | grep iwlwifi
[    6.856144] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-3160-12.ucode failed with error -2
[    6.856208] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-3160-11.ucode failed with error -2
[    6.856217] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-3160-10.ucode failed with error -2
[    6.856219] iwlwifi 0000:08:00.0: request for firmware file 'iwlwifi-3160-10.ucode' failed.
[    6.861495] iwlwifi 0000:08:00.0: Firmware has old API version, expected v10 through v12, got v9.
[    6.861499] iwlwifi 0000:08:00.0: New firmware can be obtained from http://www.intellinuxwireless.org/.
[    6.861664] iwlwifi 0000:08:00.0: loaded firmware version 25.228.9.0 op_mode iwlmvm
[    6.899533] iwlwifi 0000:08:00.0: Detected Intel(R) Dual Band Wireless AC 3160, REV=0x164
[    6.899677] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled
[    6.899923] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled
[    7.323877] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled
[    7.324167] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled


This is an OK workaround, but clearly something is up here because I am able to use the newest firmware on other distributions (Arch for instance).

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https://bugs.launchpad.net/bugs/1442411

Title:
  Intel 3160 wireless card no longer able to connect to wifi networks

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Laptop: Lenovo Y70 Touch
  Wireless Card: Intel Corporation Wireless 3160 (rev 93)

  When running Ubuntu Gnome 14.10 (on a live USB drive) I am able to
  connect to wifi networks without any issue. When running Ubuntu Gnome
  15.04 (either on live USB or installed and fully updated) I am able to
  see the list of available wifi networks, but not able to connect.
  Selecting one and entering the password makes the network manager
  applet indicate that it is "Connecting..." but then it gives up after
  about a minute or so and reverts back to "Not Connected". I have
  tested this without network encryption as well, and the same result
  occurs.

  I have ran a wifi debugging script, here is the output:

  For Ubuntu 14.10 - http://pastebin.com/aLUhTyrM
  For Ubuntu 15.04 - http://pastebin.com/f0yRjQUC

  Again, the card seems to work perfectly on 14.10, but is unable to connect to any networks on 15.04. I haven't completely narrowed this down to the firmware, however that is the most prominent difference (aside from the kernel itself) that I notice in the above files (14.10 uses iwlwifi-3160-9.ucode, while 15.04 uses iwlwifi-3160-10.ucode).
  --- 
  ApportVersion: 2.17-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mboratko   1609 F.... pulseaudio
   /dev/snd/controlC1:  mboratko   1609 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 15.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-04-10 (0 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Beta amd64 (20150326)
  MachineType: LENOVO 80DU
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-12-generic.efi.signed root=UUID=0fb46cba-f7ac-4bc5-aa7d-5f6aa74636c1 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-12-generic N/A
   linux-backports-modules-3.19.0-12-generic  N/A
   linux-firmware                             1.143
  Tags:  vivid
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 3.19.0-12-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 02/11/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 9ECN37WW(V2.01)
  dmi.board.asset.tag: 31900058WIN
  dmi.board.name: Lenovo Y70-70 Touch
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058WIN
  dmi.chassis.asset.tag: 31900058WIN
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Y70-70 Touch
  dmi.modalias: dmi:bvnLENOVO:bvr9ECN37WW(V2.01):bd02/11/2015:svnLENOVO:pn80DU:pvrLenovoY70-70Touch:rvnLENOVO:rnLenovoY70-70Touch:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoY70-70Touch:
  dmi.product.name: 80DU
  dmi.product.version: Lenovo Y70-70 Touch
  dmi.sys.vendor: LENOVO

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