kernel-packages team mailing list archive

[Seth Forshee <seth.forshee+lp@xxxxxxxxxxxxx>]

Those logs are only showing me what happened since the last boot. If you
can hunt down the syslog in /var/log which has that boot then that might
help.

Actually, what would be even better would be if you could download
http://people.canonical.com/~sforshee/wifi-debug, make it executable,
then start running it (./wifi-debug -t). Then just leave it until you
start seeing problems, press Enter to stop it, and give me the wifi-
debug-files.tar.gz file that it creates. This file may be quite large if
it runs for a while, and it could also contain some small amount of
private data, so it's better not to attach it to the bug. You can email
it to me if it's not too big, or if you have access to some online
storage you could upload it there and send me a link. You might also
stop/restart it periodically if you're connection is working well to
help keep it from getting too big.

>From what you said about the mainline builds, it sounds like there
wasn't a single kernel version where everything got fixed. You say
3.15-rc1 was better and 3.15-rc3 was better still - did you ever test
the final release of 3.14? I'd like to know whether the improvement
happened between 3.14 and 3.15-rc1 or if it happened somewhere in 3.14.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1315221

Title:
  8086:08b1 (rev 6b) [Dell XPS 13 9333] iwlwifi regularly loses
  connection/becomes unusable on Intel 7260

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  My Intel 7260 network card regularly shows very poor performance
  and/or loses its connection entirely. On several occasions I have been
  unable to reestablish an association with the AP without rebooting.
  This occurs even if the laptop is within a few feet of the AP. I did
  not have this problem on 12.04 with a quantal backport kernel.

  Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 6b)
  Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c470]

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.46
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  Date: Thu May  1 22:59:32 2014
  HibernationDevice: RESUME=/dev/mapper/cswap0
  InstallationDate: Installed on 2014-04-25 (6 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. XPS13 9333
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0GFTRT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd12/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.
  --- 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  elb        5375 F.... pulseaudio
   /dev/snd/controlC0:  elb        5375 F.... pulseaudio
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=/dev/mapper/cswap0
  InstallationDate: Installed on 2014-04-25 (94 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. XPS13 9333
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  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
  Tags:  trusty
  Uname: Linux 3.13.0-32-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 03/19/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0GFTRT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/19/2014:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.

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