kernel-packages team mailing list archive

[Juan Jose Amor Iglesias <jjamor@xxxxxxxxxxxxxxxxxx>]

Just verified that, disabling 11n the connection become stable. My wifi
card is an "Intel Wireless-N 1030 BGN":

I've added "options iwlwifi 11n_disable=1" to a file /etc/modprobe.d
/personal-opts.conf

as recommended here:

https://bugs.launchpad.net/dell-sputnik/+bug/1091372

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1005832

Title:
  8086:0085 Intel wifi frequent disconnects

Status in “linux” package in Ubuntu:
  Invalid
Status in “linux” package in Arch Linux:
  New

Bug description:
  Several people at Linaro Connect with Thinkpads and Intel wifi and
  experiencing, frequent disconnects and have to kill wpa_supplicant in
  order to reconnect.

  this seems to be related to having multiple ssid with the same name in
  close proximity see this reference:

  https://mail.gnome.org/archives/networkmanager-
  list/2012-February/msg00135.html

  I've had this happen on my x220 with both the precise and the "Q"
  kernel. I've upgraded my box to Q

  Here is a snippet of the log file when it happens:

  May 29 10:43:18 zorak wpa_supplicant[1155]: wlan0: CTRL-EVENT-DISCONNECTED bssid
  =00:00:00:00:00:00 reason=3

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.4.0-3-generic 3.4.0-3.8
  ProcVersionSignature: Ubuntu 3.4.0-3.8-generic 3.4.0
  Uname: Linux 3.4.0-3-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.1-0ubuntu1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pgraner    1844 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1520000 irq 47'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:14f1506e,17aa21da,00100002 HDA:80862805,80860101,00100000'
     Controls      : 26
     Simple ctrls  : 8
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Tue May 29 18:05:11 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=113c954a-7297-4617-b9e3-a64076beef2c
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: LENOVO 4286CTO
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.4.0-3-generic root=UUID=3d880a9e-f17b-4e2e-9499-6273ef2e37fb ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.4.0-3-generic N/A
   linux-backports-modules-3.4.0-3-generic  N/A
   linux-firmware                           1.80
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/07/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET50WW (1.20 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4286CTO
  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:bvr8DET50WW(1.20):bd07/07/2011:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4286CTO
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1005832/+subscriptions