Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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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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