kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Tags added: needs-wifi-debug

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https://bugs.launchpad.net/bugs/1318250

Title:
  8086:08b1 (rev 73) [Clevo W740SU] Intel Wireless 7260 AC slow speeds
  and drops connection in ubunu 14.04

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Slow speeds and drops connection in ubunu 14.04.

  Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73)
  Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4070]

  WORKAROUND: Download the ucode file for the 3.13 kernel here:
  http://wireless.kernel.org/en/users/Drivers/iwlwifi?action=AttachFile&do=get&target=iwlwifi-7260-ucode-22.0.6.0.tgz#Firmware

  Download backports for 3.13 here:
  http://drvbp1.linux-foundation.org/~mcgrof/rel-html/backports/

  Un-tar the downloaded files:
  tar xvf backports-3.13.2-1.tar.xz
  tar xvf iwlwifi-7260*

  Then build backports for iwlwifi:
  cd backports-3.13.2-1/
  make defconfig-iwlwifi
  make
  sudo make install

  Then copy the firmware ucode file to /lib/firmware
  cd ..
  cd iwlwifi*
  sudo cp iwlwifi* /lib/firmware

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.46
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     2382 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     2382 F.... pulseaudio
  CasperVersion: 1.340
  CurrentDesktop: Unity
  Date: Sat May 10 21:12:12 2014
  LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Notebook W740SU
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/04/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W740SU
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd07/04/2013:svnNotebook:pnW740SU:pvrNotApplicable:rvnNotebook:rnW740SU:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
  dmi.product.name: W740SU
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook

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