There are possibly two independent issues here. In some cases the
connection is lost after resume, and the module must be reloaded (or
configured to be unloaded at suspend).

The other issue is that nm-applet shows no connection (or in my case it
shows a wired connection and no wifi bar or networks, although it is
connected to wifi). I can run "nmcli device" and "nmcli device wifi"
which works fine, so this issue seems limited to nm-applet and not
network-manager or drivers. In my case running "iw wlp3s0 scan" or
"iwlist scanning" does not fix up nm-applet.

Reloading the module (for the first issue) also gives nm-applet a kick
in the butt so that the second issue is remedied temporarily.

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https://bugs.launchpad.net/bugs/1590985

Title:
  Wifi non-functional after suspend (Intel 6205)

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Often, but not always, on resume from suspend my wifi does not
  connect.  In the networking tray drop-down I can see one single wifi
  network listed (out of the many within range), and it can't reconnect
  to my network.

  I clear it with the hammer of:

      sudo rmmod iwldvm && sudo modprobe iwldvm

  I'm not sure what would be more appropriate, but that works.  Then my
  laptop auto-connects to the right network, as expected.

  Turning on/off the hardware wireless switch on the thinkpad does not
  clear the problem.

  Just before running ubuntu-bug to submit this, I had the problem, then
  reloaded the iwldvm module.

  ----

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-22-generic 4.4.0-22.40
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  james      1934 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Jun  9 18:57:10 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-05-21 (19 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  MachineType: LENOVO 2325KZ5
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic 
root=UUID=72122534-7dd5-411b-9c56-c4844502e0ad ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ETA0WW (2.60 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2325KZ5
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: 518896
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvrG2ETA0WW(2.60):bd03/05/2013:svnLENOVO:pn2325KZ5:pvrThinkPadX230:rvnLENOVO:rn2325KZ5:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2325KZ5
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO

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