kernel-packages team mailing list archive

[Emmanuel Grumbach <egrumbach@xxxxxxxxx>]

Seth,

I think the patch above is safe for 3.13. I don't know how to upstream
that since it is fixed in 3.15 and this basically means that I need a
patch in 3.13 / 3.14 which won't be in Linus's tree ever... But that's
just a dev process issue. From a technical POV, this patch should go in
3.13.

It explains why -7.ucode works I haven't checked, but I guess that
-7.ucode doesn't support the feature I disable in my patch. This code
(power code) has been heavily reworked in 3.15 and other users reported
that the issue doesn't reproduce on 3.15 even with 22.24.8.0 firmware.
So, I'd say that I think I'd like to have the -9.ucode patch and the
patch from comment $47.

As for your comment #45 (why launchpad doesn't have a reply button :)) -
yes you are right. You only need to change the define.

I hope we'll be able to get some testing... I really want to solve /
close / forget this issue :)

-- 
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 “linux-firmware” package in Ubuntu:
  Confirmed
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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