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[Bug 1588637] [NEW] iwlwifi: Microcode SW error detected. Restarting 0x2000000

 

Public bug reported:

My wifi won't work after I wake my laptop up from standby.

This problem looks quite the same as #1099487 or #944271.

But I experienced this bug on Xenial with 4.4.0-22-generic (amd64).

A `sudo modprobe -r iwlwifi && sudo modprobe iwlwifi" doesn't solve the
problem. (A reboot does.)

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/controlC1:  niklas     2175 F.... pulseaudio
 /dev/snd/controlC0:  niklas     2175 F.... pulseaudio
CurrentDesktop: KDE
Date: Fri Jun  3 08:23:06 2016
InstallationDate: Installed on 2015-12-11 (174 days ago)
InstallationMedia: Kubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IwConfig:
 eth0      no wireless extensions.
 
 lo        no wireless extensions.
 
 lxcbr0    no wireless extensions.
MachineType: LENOVO 20E8S00600
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=67485aa6-c665-4c53-bf41-328307d0cbf0 ro rootflags=subvol=@ 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: 02/24/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JHET20WW (1.00 )
dmi.board.asset.tag: Not Available
dmi.board.name: Intel powered classmate PC
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:bvrJHET20WW(1.00):bd02/24/2015:svnLENOVO:pn20E8S00600:pvrThinkPad11e:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20E8S00600
dmi.product.version: ThinkPad 11e
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug xenial

** Attachment added: "a snippet from the systemd journal"
   https://bugs.launchpad.net/bugs/1588637/+attachment/4675656/+files/iwlwifi-error.log

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https://bugs.launchpad.net/bugs/1588637

Title:
   iwlwifi: Microcode SW error detected. Restarting 0x2000000

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  My wifi won't work after I wake my laptop up from standby.

  This problem looks quite the same as #1099487 or #944271.

  But I experienced this bug on Xenial with 4.4.0-22-generic (amd64).

  A `sudo modprobe -r iwlwifi && sudo modprobe iwlwifi" doesn't solve
  the problem. (A reboot does.)

  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/controlC1:  niklas     2175 F.... pulseaudio
   /dev/snd/controlC0:  niklas     2175 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Fri Jun  3 08:23:06 2016
  InstallationDate: Installed on 2015-12-11 (174 days ago)
  InstallationMedia: Kubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
   
   lxcbr0    no wireless extensions.
  MachineType: LENOVO 20E8S00600
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=67485aa6-c665-4c53-bf41-328307d0cbf0 ro rootflags=subvol=@ 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: 02/24/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JHET20WW (1.00 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: Intel powered classmate PC
  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:bvrJHET20WW(1.00):bd02/24/2015:svnLENOVO:pn20E8S00600:pvrThinkPad11e:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20E8S00600
  dmi.product.version: ThinkPad 11e
  dmi.sys.vendor: LENOVO

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