kernel-packages team mailing list archive

[JaSauders <1293569@xxxxxxxxxxxxxxxxxx>]

@ Emmanuel

Not to sound pessimistic, but there seems to be a rather wild different
between one 7260 to the next 7260. Myself and two co-workers got the
same XPS 13 with Ubuntu. The other two had no issues, while I would
disconnect continuously, often times even when we were in the same room.
We were running the same distro and everything. Even when I swapped the
card three times, antenna twice, and the motherboard once, the issue
persisted. Ultimately this resulted in me trading up the XPS 13 under
warranty for a Latitude E7440 with Ubuntu, so it worked out (for me)
despite the issue not having been "fixed". Likewise, a friend of mine
had a laptop with a 7260 chip where he had nothing but issues despite
the extensive amount of troubleshooting and testing he did. He ended up
buying another 7260 based laptop ready to swap the chip but he ended up
having no issues, so he just kept chugging along with it.

There's a massive thread on the Intel forums with seemingly no answer.
Users from all types of distributions and operating systems are posting
about their issues, from 7 to 8 to Arch and Ubuntu. I want this fixed in
ways I cannot begin to describe, but we're about 1.5 years in since this
card's release with no "official" fix, just odds and ends tweaks that
seem to help one or two users, but not everybody. I can't help but to
feel that this is some sort of hardware issue. Unfortunately, Intel has
been rather quiet about it, so at this point it's nothing more than an
assumption.

Anyway, just wanted to throw that out there.

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/1293569

Title:
  iwlwifi-7260-8.ucode causes network disconnections problems

Status in The Linux Mint Distribution:
  New
Status in linux-firmware package in Ubuntu:
  Invalid
Status in linux-firmware source package in Precise:
  Fix Released
Status in linux-firmware source package in Trusty:
  Fix Released

Bug description:
  Running 14.04 (beta) with Kernel 3.13.0-17-generic

  I've encountered a strange and reproducible error with the
  iwlwifi-7260-8.ucode firmware.

  This laptop is a Dell XPS 12 (haswell). With the -8 firmware, it will
  connect fine to wifi for 30 or 40 mins at a time, then will start
  dropping connections repeatedly. Even modprobe -r unloading and
  reloading doesn't fix the issue, only a reboot will temporarily solve
  it for 40 mins at a time.

  Moreover, here is what's strange, is during these episodes of
  disconnection it seems to affect the actual router (2Wire), as the
  other devices in the house will also start to have issues (very slow
  connections, limited range,etc).  Once I reboot this laptop everything
  and all devices will return to normal.

  This issue has been fixed by me manually removing the -8 firware from
  /lib/firmware and letting the -7 firmware load instead. Since that has
  been done there has not been a single issue of this happening (now
  going on 4 days).

  let me know if there is any other information you would like me to
  provide.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-firmware 1.126
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Mar 17 08:13:25 2014
  Dependencies:
   
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-03-07 (9 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140307)
  PackageArchitecture: all
  SourcePackage: linux-firmware
  UpgradeStatus: No upgrade log present (probably fresh install)

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