← Back to team overview

kernel-packages team mailing list archive

[Bug 924099] Re: 8086:4236 iwlagn kernel module must disable n-support to work with Intel 5300 wireless card


bjarne holen, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder, but the one all the way at the bottom) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:

where VERSION-NUMBER is the version number of the kernel you tested. For example:

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:

If the mainline kernel does not fix this bug, please add the following tags:

As well, please remove the tag:

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your

** This bug is no longer a duplicate of bug 876147
   Intel Corporation Centrino Wireless-N + WiMAX 6150 (rev 67) not working after upgrade to 11.10

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

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  8086:4236 iwlagn kernel module must disable n-support to work with
  Intel 5300 wireless card

Status in “linux” package in Ubuntu:

Bug description:
  Version Ubuntu 11.10

  802.11-n support is not implemented fully. enabeling it (as Ubuntu
  does by default) causes the driver for the wireless card to  struggle,
  every 30 minutes or so, the wireless network drops your connections,
  and promtes you for password, and all sorts of fun things start

  disable the 802.11-n support by passing this option to the driver

  echo "options iwlagn 11n_disable=1" > /etc/modprobe.d/iwlagn.conf

  should fix the problem
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC0:  bjarne     1720 F.... pulseaudio
  CRDA: Error: [Errno 2] Ingen slik fil eller filkatalog
   Card hw:0 'Intel'/'HDA Intel at 0xf0620000 irq 46'
     Mixer name	: 'Conexant CX20561 (Hermosa)'
     Components	: 'HDA:14f15051,17aa211f,00100000'
     Controls      : 11
     Simple ctrls  : 6
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6EHT11WW-1.05'
     Mixer name	: 'ThinkPad EC 6EHT11WW-1.05'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 11.10
  HibernationDevice: RESUME=UUID=106d125d-653d-47a4-a660-253c4bee5580
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  MachineType: LENOVO 27763JG
  Package: linux (not installed)
   PATH=(custom, user)
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-15-generic root=UUID=a10f67aa-ba52-411b-8f38-b10a5f00d6d5 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
   linux-restricted-modules-3.0.0-15-generic N/A
   linux-backports-modules-3.0.0-15-generic  N/A
   linux-firmware                            1.60
  StagingDrivers: mei
  Tags:  oneiric running-unity staging
  Uname: Linux 3.0.0-15-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 11/27/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6EET49WW (3.09 )
  dmi.board.name: 27763JG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6EET49WW(3.09):bd11/27/2009:svnLENOVO:pn27763JG:pvrThinkPadX301:rvnLENOVO:rn27763JG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 27763JG
  dmi.product.version: ThinkPad X301
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to: