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[Bug 1293569] Re: iwlwifi-7260-8.ucode causes network disconnections problems

 

@ Jason Gerard DeRose

Thanks for your tip, but I'm a little confused. I ran grep before I
downloaded/extracted anything as you recommended above, and I got:

jason@JSXPS:~$ dmesg | grep iwlwifi
[    4.927130] iwlwifi 0000:02:00.0: irq 60 for MSI/MSI-X
[    5.010242] iwlwifi 0000:02:00.0: loaded firmware version 22.24.8.0 op_mode iwlmvm
[    5.082853] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144
[    5.083253] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    5.083514] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    5.862187] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[    5.862437] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[  945.229994] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[  945.230254] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 1720.447091] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 1720.447348] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S

Does the line "[    5.010242] iwlwifi 0000:02:00.0: loaded firmware
version 22.24.8.0 op_mode iwlmvm" not indicate that I am on the newer
firmware?

I came back here after I started having issues here at home. I must have
disconnected from my home router six times this evening while I'm
sitting across the room from it. I had proposed enabled so I could pull
down Unity 7.2.2 for an unrelated bug test, so that line with the 8
entry makes me wonder if I got the update without realizing it. What
concerns me is if I *did* get the update, then this clearly is not
fixed... since, after all, if it were fixed I wouldn't have lost
connection so many times tonight (I tested other laptops and had no
issue. In one instance, my laptop disconnected while others were all
connected and actively pulling large ISO files wirelessly from my file
server). Sadly, I even just now lost wireless again as I was typing
this...

Before I begin tinkering with switching this or that I wanted to get
some confirmation here by the folks who clearly know more so I can be
accurate with what I'm doing. Thanks!

-- 
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:
  Invalid
Status in “linux-firmware” source package in Precise:
  Fix Released
Status in “linux-firmware” source package in Trusty:
  Fix Committed

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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