kernel-packages team mailing list archive

[asala <1315221@xxxxxxxxxxxxxxxxxx>]

>From the upstream kernel bug, it seems that fixes for bad iwlwifi 7260 behaviour upstream are in 3.14.6
 https://bugzilla.kernel.org/show_bug.cgi?id=72601#c92
and, a second fix in https://bugzilla.kernel.org/show_bug.cgi?id=42978#c29
will land upstream shortly.
If these fixes are causing xps 13 wifi issues, it does not seem that bisecting 3.13 will be too helpful.
Anyway, I'm not too knowledgeable on bisection and patch backporting.

** Bug watch added: Linux Kernel Bug Tracker #42978
   http://bugzilla.kernel.org/show_bug.cgi?id=42978

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https://bugs.launchpad.net/bugs/1315221

Title:
  8086:08b1 (rev 6b) [Dell XPS 13 9333] iwlwifi regularly loses
  connection/becomes unusable on Intel 7260

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  My Intel 7260 network card regularly shows very poor performance
  and/or loses its connection entirely. On several occasions I have been
  unable to reestablish an association with the AP without rebooting.
  This occurs even if the laptop is within a few feet of the AP. I did
  not have this problem on 12.04 with a quantal backport kernel.

  Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 6b)
  Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c470]

  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
  Date: Thu May  1 22:59:32 2014
  HibernationDevice: RESUME=/dev/mapper/cswap0
  InstallationDate: Installed on 2014-04-25 (6 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. XPS13 9333
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/root ro quiet splash vt.handoff=7
  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
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0GFTRT
  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.:bvrA02:bd12/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.

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