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[Bug 1011623] Re: 8086:0091 [Dell XPS 15z (L511z)] Unstable wifi connection when connect to 802.11n AP with iwlwifi driver

 

Why has this bug been altered to affecting the Dell XPS 15z (L511z)
only? It affects more than that, my Dell Studio 17 (1737) being one

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https://bugs.launchpad.net/bugs/1011623

Title:
  8086:0091 [Dell XPS 15z (L511z)] Unstable wifi connection when connect
  to 802.11n AP with iwlwifi driver

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  High "Tx excessive retries" and "Invalid misc" count when connect to
  an access point with 802.11n capable.

  WORKAROUND: Disable wireless n using "options iwlwifi 11n_disable=1"
  in /etc/modprobe.d help.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-24-generic 3.2.0-24.39
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  Uname: Linux 3.2.0-24-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  chalet16   2150 F.... pulseaudio
   /dev/snd/pcmC0D0c:   chalet16   2150 F...m pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1c00000 irq 26'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0269,10280446,00100100 HDA:80862805,80860101,00100000'
     Controls      : 24
     Simple ctrls  : 11
  Date: Mon Jun 11 20:27:23 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Dell Inc. Dell System XPS 15Z
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-24-generic root=/dev/mapper/crypt ro rootflags=subvol=@ quiet splash acpi=noirq elevator=deadline vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/20/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 00WW5M
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd02/20/2012:svnDellInc.:pnDellSystemXPS15Z:pvr:rvnDellInc.:rn00WW5M:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS 15Z
  dmi.sys.vendor: Dell Inc.

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