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[Bug 1296679] [NEW] Intel Centrino Ultimate-N 6300 - Packet loss/dropout using WiFi-N

 

Public bug reported:

If mobprobe iwlwifi 11n_disable=1 is used, hence fallback to G,
connection is stable/no packet loss. Exists on all kernels, ubuntu and
mainline.

Duplicate bugs exist for more than 2 years, this is clearly an upstream
bug, have they been notified?

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-19-generic 3.13.0-19.39
ProcVersionSignature: Ubuntu 3.13.0-19.39-generic 3.13.6
Uname: Linux 3.13.0-19-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  shaawin    1850 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Mar 24 22:50:32 2014
InstallationDate: Installed on 2014-03-20 (3 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140319)
MachineType: CLEVO CO. W55xEU
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-19-generic.efi.signed root=UUID=a97391c3-cdbf-4469-9b14-220e01582835 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-19-generic N/A
 linux-backports-modules-3.13.0-19-generic  N/A
 linux-firmware                             1.126
RfKill:
 1: phy1: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/03/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W55xEU
dmi.board.vendor: CLEVO CO.
dmi.board.version: D02
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd10/03/2013:svnCLEVOCO.:pnW55xEU:pvrNotApplicable:rvnCLEVOCO.:rnW55xEU:rvrD02:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: W55xEU
dmi.product.version: Not Applicable
dmi.sys.vendor: CLEVO CO.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1296679

Title:
  Intel Centrino Ultimate-N 6300 - Packet loss/dropout using WiFi-N

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  If mobprobe iwlwifi 11n_disable=1 is used, hence fallback to G,
  connection is stable/no packet loss. Exists on all kernels, ubuntu and
  mainline.

  Duplicate bugs exist for more than 2 years, this is clearly an
  upstream bug, have they been notified?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-19-generic 3.13.0-19.39
  ProcVersionSignature: Ubuntu 3.13.0-19.39-generic 3.13.6
  Uname: Linux 3.13.0-19-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shaawin    1850 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Mar 24 22:50:32 2014
  InstallationDate: Installed on 2014-03-20 (3 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140319)
  MachineType: CLEVO CO. W55xEU
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-19-generic.efi.signed root=UUID=a97391c3-cdbf-4469-9b14-220e01582835 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-19-generic N/A
   linux-backports-modules-3.13.0-19-generic  N/A
   linux-firmware                             1.126
  RfKill:
   1: phy1: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/03/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W55xEU
  dmi.board.vendor: CLEVO CO.
  dmi.board.version: D02
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd10/03/2013:svnCLEVOCO.:pnW55xEU:pvrNotApplicable:rvnCLEVOCO.:rnW55xEU:rvrD02:cvnNoEnclosure:ct10:cvrN/A:
  dmi.product.name: W55xEU
  dmi.product.version: Not Applicable
  dmi.sys.vendor: CLEVO CO.

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