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[morinpatmorin <morinpatmorin@xxxxxxxxx>]

I can confirm that this bug affects my Dell XPS 13 Haswell with an Intel
7260 rev 6b.  Symptoms are identical to those described in the original
post.

Using the mainline 3.15.10 kernel seems to have helped, but doesn't
detect my Synaptics touchpad, so I never used it for very long.  I also
tried one of the 3.17rc3, but that wouldn't even boot.

The only workable solution for now is using 3.13.0-35-generic with the
-8 ucode moved out of the way so that it uses the -7. This makes the
disconnects come hours apart instead of minutes apart.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1354975

Title:
  iwlwifi Intel 7260 Wifi disconnects

Status in Unity Linux:
  New
Status in “linux-firmware” package in Ubuntu:
  Incomplete

Bug description:
  I experience frequent disconnects and auth issues, never more than 30
  minutes without a disconnect. Sometimes dozens of disconnects in a few
  minutes.

  This happens with the default 7260-8 firmware.
  Tried replacing the -8 with -9 ucode. Failed to load due to API version. This loaded the -7 driver which seems to be more stable.

  Tested against 2.4ghz APs (Apple, Netgear, Linksys).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  steve      2577 F.... pulseaudio
   /dev/snd/controlC1:  steve      2577 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Aug 10 17:49:06 2014
  HibernationDevice: RESUME=UUID=374a0c1c-4ac2-456b-a67e-9ea54fe11fe6
  InstallationDate: Installed on 2013-12-28 (225 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. XPS 12-9Q33
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=58deb355-7a09-440b-ade2-69a84fd74460 ro ipv6.disable=1 quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-07-06 (35 days ago)
  dmi.bios.date: 05/06/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: XPS 12-9Q33
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd05/06/2013:svnDellInc.:pnXPS12-9Q33:pvrA00:rvnDellInc.:rnXPS12-9Q33:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: XPS 12-9Q33
  dmi.product.version: A00
  dmi.sys.vendor: Dell Inc.

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