Further info: After adding this line to my modprobe-settings: options snd-hda-intel enable=1,0 (which disables the audio-output on the HDMI-port) I was not able to reproduce the issue anymore.
-- 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/1647048 Title: System freezes after login (NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s) Status in linux package in Ubuntu: Confirmed Bug description: Hi, Since I updated to kubuntu 16.10 I quite often have the situation that my laptop completely freezes after login in sddm (that means: while KDE is loading). During that time: - Fans run high - laptop is completely unuseable (no mouse or keyboard-input accepted, can't switch to other terminal, etc ...) - only a long press to the power-button helps . - network-connections break (tried to monitor the system remotely, but when the error occurs, also the ssh-connection fails) - the kern.log stops and contains only a few lines of rubbish: Dec 3 11:01:37 orbit kernel: [ 18.951805] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM Dec 3 11:01:37 orbit kernel: [ 18.951808] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160422/nsarguments-95) Dec 3 11:01:37 orbit kernel: [ 18.951891] nouveau 0000:01:00.0: DRM: suspending console... Dec 3 11:01:37 orbit kernel: [ 18.951894] nouveau 0000:01:00.0: DRM: suspending display... Dec 3 11:01:37 orbit kernel: [ 18.951902] nouveau 0000:01:00.0: DRM: evicting buffers... Dec 3 11:01:37 orbit kernel: [ 18.960908] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle... Dec 3 11:01:37 orbit kernel: [ 18.960935] nouveau 0000:01:00.0: DRM: suspending client object trees... Dec 3 11:01:37 orbit kernel: [ 18.961192] nouveau 0000:01:00.0: DRM: suspending kernel object tree... ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ... - installed and tested kernel-crashdump, but in this situation it is not triggered (or fails to write a coredump) - (once I tried to leave the machin alone for about 30 min, it does not recover...) As a last resort, I installed netconsole and captured the kernel.log on a remote machine, this revealed, that during the lookup, following "soft lockups" occur: [ 107.926161] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 107.926172] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 135.919531] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 135.919536] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 159.917848] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-timesyn:502] [ 159.917853] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 163.912901] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 163.912904] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 187.911218] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [systemd-timesyn:502] [ 187.911221] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 191.906272] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 191.906275] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm About my setup: lsb_release -rd Description: Ubuntu 16.10 Release: 16.10 (using kubuntu) uname -a Linux orbit 4.8.0-28-generic #30-Ubuntu SMP Fri Nov 11 14:03:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Attached tgz contains: - the log taken from netconsole - the kernel-log from the frozen machine (the netconsole.log belongs to the freeeze at "Dec 3 14:09:40") - the output of dpkg -l (to provide a full list of installed packages/versions) The issue occurs approx. every 3-4 logins, regardless whether it's a fersh startup, or if i logged out before/change user. --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: misko 1761 F.... pulseaudio /dev/snd/controlC0: misko 1761 F.... pulseaudio CurrentDesktop: KDE DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=63876c7b-49f9-44df-9fdb-86f3dd1557a1 InstallationDate: Installed on 2016-06-09 (176 days ago) InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Acer TravelMate 8481TG Package: linux (not installed) ProcFB: 0 inteldrmfb 1 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-28-generic root=UUID=f65e0ccb-17e7-48a8-93ea-f130239d4aa0 ro noprompt debug ignore_loglevel crashkernel=384M-:128M ProcVersionSignature: Ubuntu 4.8.0-28.30-generic 4.8.6 RelatedPackageVersions: linux-restricted-modules-4.8.0-28-generic N/A linux-backports-modules-4.8.0-28-generic N/A linux-firmware 1.161 Tags: yakkety Uname: Linux 4.8.0-28-generic x86_64 UpgradeStatus: Upgraded to yakkety on 2016-11-22 (10 days ago) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 11/28/2012 dmi.bios.vendor: Acer dmi.bios.version: V1.16 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: BA41_HS dmi.board.vendor: Acer dmi.board.version: Base Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.16 dmi.modalias: dmi:bvnAcer:bvrV1.16:bd11/28/2012:svnAcer:pnTravelMate8481TG:pvrV1.16:rvnAcer:rnBA41_HS:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.16: dmi.product.name: TravelMate 8481TG dmi.product.version: V1.16 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647048/+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
