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

[Brian Guan]

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

[Raymond (superquad-vortex2)]

[ 13.268373] snd_hda_codec: module verification failed: signature and/or required key missing - tainting kernel
[ 13.292488] snd_hda_intel: Unknown symbol snd_card_new (err 0)
[ 13.292793] snd_hda_intel: Unknown symbol snd_card_new (err 0)
[ 13.293120] snd_hda_intel: Unknown symbol snd_card_new (err 0)
[ 13.293417] snd_hda_intel: Unknown symbol snd_card_new (err 0)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Spectrumknight (spectrumknight)]

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)

[David Henningsson (diwic)]

Spectrumknight, apart from using the oem-audio-hda-daily-dkms package, you *also* seem to have installed a custom version of the snd kernel module somehow:

[ 138.914918] snd: module verification failed: signature and/or required key missing - tainting kernel

So you'll have one kernel base, a snd module from a second source, and a third snd-hda-* module from the dkms package. That probably makes the dkms package compile itself against the wrong headers, causing the above.

[Spectrumknight (spectrumknight)]

Hello David,

You got point on this. In fact it was the remnants of a realtrek drivers compilation.

I did delete the snd.ko and did reinstall the whole sound base, then i have installed the daily dkms.

Everythink back now. Thank you so much for your usefuk remark.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]