Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.9 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/v4.9-rc1/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1634108 Title: intel_iommu=on causes iwlwifi to fail Status in linux package in Ubuntu: Incomplete Bug description: Enabling IOMMU (intel_iommu=on) parameter, I lose my WIFI card: [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.8.0-22-generic root=/dev/mapper/ubuntu--vg-root ro radeon.dpm=1 intel_iommu=on [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.8.0-22-generic root=/dev/mapper/ubuntu--vg-root ro radeon.dpm=1 intel_iommu=on [ 14.493516] iommu: Adding device 0000:00:00.0 to group 0 [ 14.493530] iommu: Adding device 0000:00:01.0 to group 1 [ 14.493539] iommu: Adding device 0000:00:14.0 to group 2 [ 14.493552] iommu: Adding device 0000:00:16.0 to group 3 [ 14.493561] iommu: Adding device 0000:00:16.3 to group 3 [ 14.493571] iommu: Adding device 0000:00:19.0 to group 4 [ 14.493579] iommu: Adding device 0000:00:1a.0 to group 5 [ 14.493587] iommu: Adding device 0000:00:1b.0 to group 6 [ 14.493596] iommu: Adding device 0000:00:1c.0 to group 7 [ 14.493605] iommu: Adding device 0000:00:1c.6 to group 8 [ 14.493614] iommu: Adding device 0000:00:1d.0 to group 9 [ 14.493630] iommu: Adding device 0000:00:1f.0 to group 10 [ 14.493638] iommu: Adding device 0000:00:1f.2 to group 10 [ 14.493647] iommu: Adding device 0000:00:1f.3 to group 10 [ 14.493653] iommu: Adding device 0000:01:00.0 to group 1 [ 14.493659] iommu: Adding device 0000:01:00.1 to group 1 [ 14.493667] iommu: Adding device 0000:3b:00.0 to group 11 [ 14.493677] iommu: Adding device 0000:3c:01.0 to group 12 [ 14.493687] iommu: Adding device 0000:3c:02.0 to group 13 [ 14.493695] iommu: Adding device 0000:3c:03.0 to group 14 [ 14.493710] iommu: Adding device 0000:3d:00.0 to group 15 [ 14.493725] iommu: Adding device 0000:5f:00.0 to group 16 [ 24.379876] iwlwifi 0000:3d:00.0: enabling device (0000 -> 0002) [ 24.394961] iwlwifi 0000:3d:00.0: loaded firmware version 17.352738.0 op_mode iwlmvm [ 24.435195] iwlwifi 0000:3d:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144 [ 24.437388] iwlwifi 0000:3d:00.0: L1 Enabled - LTR Enabled [ 24.437841] iwlwifi 0000:3d:00.0: L1 Enabled - LTR Enabled [ 29.454188] iwlwifi 0000:3d:00.0: Failed to load firmware chunk! [ 29.455194] iwlwifi 0000:3d:00.0: Could not load the [0] uCode section [ 29.456109] iwlwifi 0000:3d:00.0: Failed to start INIT ucode: -110 [ 29.462726] iwlwifi 0000:3d:00.0: Failed to run INIT ucode: -110 [ 29.463852] iwlwifi 0000:3d:00.0: L1 Enabled - LTR Enabled ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-22-generic 4.8.0-22.24 ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0 Uname: Linux 4.8.0-22-generic x86_64 NonfreeKernelModules: openafs ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: afiergol 2914 F...m pulseaudio /dev/snd/controlC0: afiergol 2914 F.... pulseaudio /dev/snd/controlC1: afiergol 2914 F.... pulseaudio CurrentDesktop: Unity Date: Mon Oct 17 13:48:01 2016 HibernationDevice: RESUME=UUID=7ca97ca1-ca2d-43f6-9b4c-cd61421c0831 InstallationDate: Installed on 2015-04-02 (563 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Hewlett-Packard HP ZBook 15 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-22-generic root=/dev/mapper/ubuntu--vg-root ro radeon.dpm=1 intel_iommu=on RelatedPackageVersions: linux-restricted-modules-4.8.0-22-generic N/A linux-backports-modules-4.8.0-22-generic N/A linux-firmware 1.161 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to yakkety on 2016-10-16 (0 days ago) dmi.bios.date: 04/25/2016 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M70 Ver. 01.15 dmi.board.name: 2253 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 03.12 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM70Ver.01.15:bd04/25/2016:svnHewlett-Packard:pnHPZBook15G2:pvrA3008CD10003:rvnHewlett-Packard:rn2253:rvrKBCVersion03.12:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ZBook 15 G2 dmi.product.version: A3008CD10003 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1634108/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
