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[Bug 1558252] Re: Intel 8260 / iwlwifi Occasionally unusuable after restart


I'm seeing similar problems. The Intel 8260 provides bluetooth as we
well as wifi connectivity. It seems that for me Wifi can't be enabled
until bluetooth is enabled. I'm using linux 4.4.0-18-generic

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  Intel 8260 / iwlwifi Occasionally unusuable after restart

Status in linux package in Ubuntu:

Bug description:
  Some times my wifi card is inaccessible immediately after boot. Typically, restarting the machine or reloading the iwlwifi kernel module resolves the issue.

  dmesg on inaccessible card:

  [   13.146917] iwlwifi 0000:04:00.0: Unsupported splx structure
  [   13.147620] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-19.ucode failed with error -2
  [   13.147754] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-18.ucode failed with error -2
  [   13.147765] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-17.ucode failed with error -2
  [   13.154952] iwlwifi 0000:04:00.0: loaded firmware version 16.242414.0 op_mode iwlmvm
  [   13.191912] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
  [   13.198415] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
  [   13.199446] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
  [   13.200661] iwlwifi 0000:04:00.0: can't access the RSA semaphore it is write protected
  [   14.218185] iwlwifi 0000:04:00.0: SecBoot CPU1 Status: 0x3090003, CPU2 Status: 0x0
  [   14.218190] iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110
  [   14.219090] iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110
  [   14.219157] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-13-generic 4.4.0-13.29
  ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5
  Uname: Linux 4.4.0-13-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
   /dev/snd/controlC0:  ryan       1999 F.... pulseaudio
  Date: Wed Mar 16 12:00:48 2016
  HibernationDevice: RESUME=UUID=04e04e17-3976-4daa-a1dd-2dd369aee83d
  InstallationDate: Installed on 2015-09-21 (176 days ago)
  InstallationMedia: It
   enp0s31f6  no wireless extensions.
   lo        no wireless extensions.
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20FNCTO1WW
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-13-generic root=/dev/mapper/it--vg-root ro quiet intel_pstate=no_hwp
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
   linux-restricted-modules-4.4.0-13-generic N/A
   linux-backports-modules-4.4.0-13-generic  N/A
   linux-firmware                            1.156
   0: tpacpi_bluetooth_sw: Bluetooth
   	Soft blocked: yes
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-24 (20 days ago)
  dmi.bios.date: 01/05/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: R06ET33W (1.07 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20FNCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrR06ET33W(1.07):bd01/05/2016:svnLENOVO:pn20FNCTO1WW:pvrThinkPadT460:rvnLENOVO:rn20FNCTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20FNCTO1WW
  dmi.product.version: ThinkPad T460
  dmi.sys.vendor: LENOVO

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