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[Bug 1348801] Re: Wifi network fails to comeonline after resuming from suspend

 

In the logs I'm seeing this message in the logs:

iwlwifi 0000:02:00.0: RF_KILL bit toggled to disable radio.

This just keeps on repeating, alternating with "enable radio" messages,
and it's also intermixed with "unknown key" messages. The radio is never
enabled long enough to establish a wireless connection.

If I remember correctly the RF_KILL messages would result from the state
of a hardware signal to the wireless card changing, and this signal
would either be under firmware control or tied directly to a physical
switch on the machine. If it's controlled by firmware then the state may
be related to a wifi hotkey or similar on the machine, and the unknown
key messages could also be generated by such a key. Does your machine
have such a switch or key, and if so were you toggling or pressing this
switch or key after resuming from suspend?

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https://bugs.launchpad.net/bugs/1348801

Title:
  Wifi network fails to comeonline after resuming from suspend

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I am primarily connect using wifi, so after i close the lid of my
  laptop, and then open it back again, i find wifi connect won't come
  online and upon selecting enable networking nothing happens, so the
  only solution is to reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  imran      1912 F.... pulseaudio
   /dev/snd/controlC0:  imran      1912 F.... pulseaudio
  CurrentDesktop: Unity
  CurrentDmesg:
   [   18.646738] init: plymouth-upstart-bridge main process ended, respawning
   [  320.025576] perf samples too long (2507 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
   [ 1183.898845] systemd-hostnamed[3266]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
  Date: Sat Jul 26 00:17:53 2014
  HibernationDevice: RESUME=UUID=f64b1ebb-cf58-44da-b46e-bae95a9c8367
  InstallationDate: Installed on 2014-07-25 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  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
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/25/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.46
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 3628
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 18.51
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.46:bd08/25/2011:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvrRev1:rvnHewlett-Packard:rn3628:rvr18.51:cvnHewlett-Packard:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv6 Notebook PC
  dmi.product.version: Rev 1
  dmi.sys.vendor: Hewlett-Packard

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