← Back to team overview

kernel-packages team mailing list archive

[Bug 1451246] Re: Intel 7265 Wifi instability workaround


XicoSM, it will help immensely if you filed a new report via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

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

  Intel 7265 Wifi instability workaround

Status in linux package in Ubuntu:

Bug description:
  I have a Thinkpad T450s since 5/1/2015 (though linux wants the 7265D
  ucode though). It was unstable, even when upgrading to the 4.0.1
  mainline kernel.

  Using the latest 7265 firmware improved things, but things like streams, speed tests, and youtube would tank the connection:
  sudo rm /lib/firmware/iwlwifi*
  sudo cp /path/to/iwlwifi-7265*-12.ucode /lib/firmware/.

  WORKAROUND: Disable 802.11n:
  echo 'options iwlwifi 11n_disable=1' | sudo tee -a /etc/modprobe.d/iwlwifi.conf

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-15-generic 3.19.0-15.15 [modified: boot/vmlinuz-3.19.0-15-generic]
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
   /dev/snd/controlC0:  epicstar   1453 F.... pulseaudio
   /dev/snd/pcmC1D0p:   epicstar   1453 F...m pulseaudio
   /dev/snd/controlC1:  epicstar   1453 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun May  3 15:43:35 2015
  HibernationDevice: RESUME=UUID=9caf85bf-266f-4356-9a64-031df7edb239
  InstallationDate: Installed on 2015-05-02 (1 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: LENOVO 20BXCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic.efi.signed root=UUID=b8187455-26c0-492f-bf45-755286cf5623 ro quiet splash vt.handoff=7
   linux-restricted-modules-3.19.0-15-generic N/A
   linux-backports-modules-3.19.0-15-generic  N/A
   linux-firmware                             1.143
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/10/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JBET47WW (1.12 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BXCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrJBET47WW(1.12):bd03/10/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20BXCTO1WW
  dmi.product.version: ThinkPad T450s
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to: