kernel-packages team mailing list archive

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

Marvin Scholz, the next step is to fully commit bisect from kernel 3.16
to 3.19 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags removed: bios-outdated-1.07
** Tags added: latest-bios-1.07

** Tags removed: utopic
** Tags added: kernel-bug-exists-upstream-4.0 needs-bisect regression-release

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1444766

Title:
  Wifi connection issues

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  1) Ubuntu Version: 15.04 (Vivid Vervet)
  2) Kernel Version: 3.19.0-12-generic

  Wireless: Intel Wireless 7265 (on Thinkpad X250)

  3) I expect Wifi to work as expected without connection drops.

  4) I am experiencing sudden connection drops, which means I am not
  able to connect to anything after a certain time and it seems that it
  only happens after certain amount of data has be downloaded. Although
  the Wifi still appears as connected, it behaves like it isn't.

  Other:
  When I am booting with Kernel 3.16.0-23-generic I do not experience any Wifi connection problems at all.

  (I am not sure if this bugreport is fine, as this is the first time I am reporting a bug here, I will be happy to do improvements to the report if I did anything wrong or provide as much data as possible upon request.)
  --- 
  ApportVersion: 2.17-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  epirat     1708 F.... pulseaudio
   /dev/snd/controlC0:  epirat     1708 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-04-09 (6 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20CLS0JA00
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-12-generic root=UUID=28d14754-0ce2-45a9-a1aa-068caaab54d0 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-12-generic N/A
   linux-backports-modules-3.19.0-12-generic  N/A
   linux-firmware                             1.143
  Tags:  vivid
  Uname: Linux 3.19.0-12-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-04-09 (6 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 01/23/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET28W (1.05 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CLS0JA00
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET28W(1.05):bd01/23/2015:svnLENOVO:pn20CLS0JA00:pvrThinkPadX250:rvnLENOVO:rn20CLS0JA00:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CLS0JA00
  dmi.product.version: ThinkPad X250
  dmi.sys.vendor: LENOVO

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