kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.4 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily

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

** Tags added: needs-bisect regression-update

** Tags added: vivid

-- 
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/1535053

Title:
  Wifi stops working with kernel update linux-image-3.19.0-43

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  After update to kernel linux-image-3.19.0-43 Wifi will not connect. Reverting to linux-image-3.19.0-42 fixes this issue.
  I'm using ThinkPad T440s with Ubuntu LTS 14.04 trusty.

  Jan 17 10:17:07 thinkpad-t440s NetworkManager[1016]: <info> (wlan0): device state change: config -> failed (reason 'SSID not found') [50 120 53]
  Jan 17 10:17:07 thinkpad-t440s NetworkManager[1016]: <info> NetworkManager state is now DISCONNECTED
  Jan 17 10:17:07thinkpad-t440sNetworkManager[1016]: <warn> Activation (wlan0) failed for connection 'Wifi'
  Jan 17 10:17:07 thinkpad-t440s NetworkManager[1016]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
  Jan 17 10:17:07 thinkpad-t440s NetworkManager[1016]: <info> (wlan0): deactivating device (reason 'none') [0]
  Jan 17 10:17:07 thinkpad-t440s NetworkManager[1016]: <info> (wlan0): supplicant interface state: scanning -> disconnected
  Jan 17 10:17:07 thinkpad-t440s NetworkManager[1016]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ydary      1823 F.... pulseaudio
   /dev/snd/controlC1:  ydary      1823 F.... pulseaudio
  CurrentDesktop: Pantheon
  DistroRelease: elementary OS 0.3.2
  HibernationDevice: RESUME=UUID=5254b244-db3b-4b61-af55-97907a28899b
  InstallationDate: Installed on 2015-11-10 (68 days ago)
  InstallationMedia: elementary OS 0.3.1 "Freya" - Stable amd64 (20150903)
  MachineType: LENOVO 20ARS19C02
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-42-generic root=/dev/mapper/elementary--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-42.48~14.04.1-generic 3.19.8-ckt10
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-42-generic N/A
   linux-backports-modules-3.19.0-42-generic  N/A
   linux-firmware                             1.127.19
  Tags:  freya
  Uname: Linux 3.19.0-42-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/03/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GJET79WW (2.29 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20ARS19C02
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGJET79WW(2.29):bd09/03/2014:svnLENOVO:pn20ARS19C02:pvrThinkPadT440s:rvnLENOVO:rn20ARS19C02:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20ARS19C02
  dmi.product.version: ThinkPad T440s
  dmi.sys.vendor: LENOVO

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