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[Bug 1349572] Re: Wireless network disconnections on Dell XPS 13

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Thanks, Marcel. The problem does look very similar to that in bug
#1293569, but apparently that fix isn't working for you.

Let's try to get some more data. Please download
http://people.canonical.com/~sforshee/wifi-debug, then open a terminal
and make it file executable ("chmod u+x wifi-debug" in the directory
where you downloaded the file). Run "sudo apt-get install iw trace-cmd
tcpdump" to install some needed tools, then run "./wifi-debug -t -p".
This will start collecting data. Leave it running until you experience
wireless problems, then press Enter to stop collecting data (this
collects a lot of data, so if this problem takes a long time to happen
you may want to periodically stop and restart wifi-debug as long as the
connection is stable as well).

Once the script finishes you should have a file named wifi-debug-
files.tar.gz. Please give me this file either via email or by uploading
it to some kind of online storage and providing me a link. I don't
suggest attaching it to this bug report.

Please note that this script will log your network activity and the
activity of other wireless clients on the same channel (though traffic
from other clients will be encrypted if connected to a protected
network), so anything you do on the wireless connection while it's
running will be captured. I won't be looking at the actual data sent
over the network, and anything sent over a secure SSL connection will
still be encrypted, but you may want to restrict your activity while the
script is running to avoid having any personal or confidential
information captured. If you aren't comfortable with having network
activity logged you can omit the -p option to wifi-debug. In that case
only mildly private information such as network addresses will be
collected, but that will also limit what I'm able to do to help you.

Thanks!

-- 
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https://bugs.launchpad.net/bugs/1349572

Title:
  Wireless network disconnections on Dell XPS 13

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  With kernel 3.13.0.30 and 22.1.7.0, there are lots of wireless disconnections.
  Tested also with kernel 3.13.0.32 and 22.24.8.0 , also lots of wireles disconnections. 

  The AP is an ASL-26555 from Movistar(Spain). Firmware version:
  v2.0.0.51B_ESv6

  Seems that when the computer is working for some time it is more easy
  to reproduce this beahviour.

  Added this bug as sugested in #1293569, comment #91.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-30-generic 3.13.0-30.55
  ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  marcel     2611 F.... pulseaudio
   /dev/snd/controlC0:  marcel     2611 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Jul 28 22:20:19 2014
  HibernationDevice: RESUME=UUID=01981495-0235-4fdf-b7c6-c6191e986cec
  InstallationDate: Installed on 2014-01-23 (186 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. XPS13 9333
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic root=UUID=9d324637-b4a0-4800-a447-d17e20b708f3 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-30-generic N/A
   linux-backports-modules-3.13.0-30-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-17 (101 days ago)
  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:  marcel     2644 F.... pulseaudio
   /dev/snd/controlC0:  marcel     2644 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=01981495-0235-4fdf-b7c6-c6191e986cec
  InstallationDate: Installed on 2014-01-23 (187 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. XPS13 9333
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=9d324637-b4a0-4800-a447-d17e20b708f3 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: Upgraded to trusty on 2014-04-17 (103 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  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:  marcel     2644 F.... pulseaudio
   /dev/snd/controlC0:  marcel     2644 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=01981495-0235-4fdf-b7c6-c6191e986cec
  InstallationDate: Installed on 2014-01-23 (187 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. XPS13 9333
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=9d324637-b4a0-4800-a447-d17e20b708f3 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: Upgraded to trusty on 2014-04-17 (103 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  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.

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