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[Spectrumknight <spectrumknight@xxxxxxx>]

Same issue after updating alsa drivers (kernel 3.13,  oem-audio-hda-
daily-dkms - 0.201410311235~ubuntu14.04.1 ):

dmesg output

[  138.914918] snd: module verification failed: signature and/or  required key missing - tainting kernel
[  138.918891] snd_hda_codec: disagrees about version of symbol snd_ctl_add
[  138.918893] snd_hda_codec: Unknown symbol snd_ctl_add (err -22)
[  138.918906] snd_hda_codec: Unknown symbol snd_jack_report (err 0)
[  138.918911] snd_hda_codec: Unknown symbol snd_pcm_add_chmap_ctls (err 0)
[  138.918915] snd_hda_codec: disagrees about version of symbol snd_card_proc_new
[  138.918916] snd_hda_codec: Unknown symbol snd_card_proc_new (err -22)
[  138.918932] snd_hda_codec: Unknown symbol snd_ctl_add_vmaster_hook (err 0)
[  138.918937] snd_hda_codec: Unknown symbol snd_ctl_sync_vmaster (err 0)
[  138.918940] snd_hda_codec: disagrees about version of symbol snd_ctl_remove
[  138.918940] snd_hda_codec: Unknown symbol snd_ctl_remove (err -22)
[  138.918942] snd_hda_codec: disagrees about version of symbol snd_ctl_find_id
[  138.918943] snd_hda_codec: Unknown symbol snd_ctl_find_id (err -22)
[  138.918949] snd_hda_codec: Unknown symbol snd_kctl_jack_new (err 0)
[  138.918951] snd_hda_codec: disagrees about version of symbol snd_ctl_new1
[  138.918952] snd_hda_codec: Unknown symbol snd_ctl_new1 (err -22)
[  138.918961] snd_hda_codec: Unknown symbol snd_pcm_std_chmaps (err 0)
[  138.918967] snd_hda_codec: Unknown symbol snd_ctl_make_virtual_master (err 0)
[  138.918977] snd_hda_codec: disagrees about version of symbol snd_ctl_boolean_mono_info
[  138.918977] snd_hda_codec: Unknown symbol snd_ctl_boolean_mono_info (err -22)
[  138.918985] snd_hda_codec: Unknown symbol snd_jack_new (err 0)
[  138.918989] snd_hda_codec: Unknown symbol snd_hwdep_new (err 0)
[  138.919001] snd_hda_codec: Unknown symbol snd_kctl_jack_report (err 0)
[  138.919003] snd_hda_codec: disagrees about version of symbol snd_device_new
[  138.919004] snd_hda_codec: Unknown symbol snd_device_new (err -22)
[  138.919013] snd_hda_codec: Unknown symbol _snd_ctl_add_slave (err 0)
[  138.919020] snd_hda_codec: disagrees about version of symbol snd_pci_quirk_lookup
[  138.919021] snd_hda_codec: Unknown symbol snd_pci_quirk_lookup (err -22)
[  138.919023] snd_hda_codec: disagrees about version of symbol snd_device_free
[  138.919024] snd_hda_codec: Unknown symbol snd_device_free (err -22)
[  138.919029] snd_hda_codec: Unknown symbol snd_pcm_hw_constraint_step (err 0)
[  138.919040] snd_hda_codec: Unknown symbol snd_pcm_format_width (err 0)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1284352

Title:
  snd_hda_codec: module verification failed: signature and/or required
  key missing - tainting kernel

Status in “alsa-driver” package in Ubuntu:
  Confirmed

Bug description:
  Well, another ubuntu update, another round of fighting to get sound
  working.  Dual boot to Windows 8 to make sure sound works, so hardware
  is fine.

  While in Linux terminal:

  brian@vaio:~$ 
  brian@vaio:~$ lsmod | grep snd
  snd_hda_codec         137465  0 
  snd_hwdep              13602  1 snd_hda_codec
  snd_pcm               102033  1 snd_hda_codec
  snd_page_alloc         18710  1 snd_pcm
  snd_seq_midi           13324  0 
  snd_seq_midi_event     14899  1 snd_seq_midi
  snd_rawmidi            30095  1 snd_seq_midi
  snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
  snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
  snd_timer              29433  2 snd_pcm,snd_seq
  snd                    69141  8 snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_seq_device,snd_seq_midi
  soundcore              12680  1 snd
  brian@vaio:~$ cat /proc/asound/cards 
  --- no soundcards ---
  brian@vaio:~$ sudo alsa force-reload
  Unloading ALSA sound driver modules: snd-hda-codec snd-hwdep snd-pcm snd-page-alloc snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer.
  Loading ALSA sound driver modules: snd-hda-codec snd-hwdep snd-pcm snd-page-alloc snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer.
  brian@vaio:~$ cat /proc/asound/cards 
  --- no soundcards ---
  brian@vaio:~$ ubuntu-bug -s audio

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.11.0-17.31-generic 3.11.10.3
  Uname: Linux 3.11.0-17-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDmesg: [   21.837687] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
  Date: Mon Feb 24 14:13:08 2014
  InstallationDate: Installed on 2013-10-20 (127 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Title: PCI/internal sound card not detected
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/06/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R1140Y8
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1140Y8:bd10/06/2010:svnSonyCorporation:pnVPCEC390X:pvrC607HR4N:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VPCEC390X
  dmi.product.version: C607HR4N
  dmi.sys.vendor: Sony Corporation

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