kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

arty, could you please test the latest upstream kernel available from
the very top line at the top of the page (the release names are
irrelevant for testing, and please do not test the daily folder)
following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow
additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested exactly shown as:
kernel-fixed-upstream-3.19-rc1

This can be done by clicking on the yellow circle with a black pencil
icon next to the word Tags located at the bottom of the bug description.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Changed in: linux (Ubuntu)
   Importance: Low => Medium

-- 
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https://bugs.launchpad.net/bugs/1405437

Title:
  [Dell Precision M4800] iwlwifi regularly loses connection on Intel
  7260

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  About every 10 minutes my WiFi disconnects and a line like this appears in syslog:
  Dec 24 11:31:31 work kernel: [ 2721.017478] wlan0: deauthenticated from 10:c6:1f:2c:49:56 (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)

  It is accompanied later by such line:
  Dec 24 11:31:46 work NetworkManager[902]: <info> (wlan0): device state change: activated -> failed (reason 'SSID not found') [100 120 53]

  The network disappears from the list and only becomes visible after I
  disable and re-enable networking via the network applet.

  I don't remember seeing this problem at work where they use Cisco
  routers. I see the problem at home with my Speedport 723V Typ A router
  (a+b+n mode, WPA2). This may be affected by number of other wifi
  networks which are visible here: at least 17 at the moment.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-28-generic 3.16.0-28.38
  ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1
  Uname: Linux 3.16.0-28-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  treguben   2520 F.... pulseaudio
   /dev/snd/controlC0:  treguben   2520 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Dec 24 15:06:25 2014
  HibernationDevice: RESUME=UUID=82445dd2-3bcf-42f7-ae59-4fba694e25de
  InstallationDate: Installed on 2014-12-11 (12 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Dell Inc. Precision M4800
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic.efi.signed root=UUID=9a116abe-59b9-48b8-abe4-5064a191ac51 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-28-generic N/A
   linux-backports-modules-3.16.0-28-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/03/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A11
  dmi.board.name: 0T3YTY
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA11:bd12/03/2014:svnDellInc.:pnPrecisionM4800:pvr01:rvnDellInc.:rn0T3YTY:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Precision M4800
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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