PCI/internal sound card not detected

[Bernhard Maechtel]

This morning (07/15/16) there was a kernel update from Canonical showing up, after doing this update the sound was gone. I run Ubuntu 14.04, on a pre-installed Dell Latitude 3470

bernhard@bernhard-Latitude-3470:~$ aplay -l
aplay: device_list:268: no soundcards found...

Audio device: Intel Corporation Device 9d70 (rev 21) Subsystem: Dell Device 06f2

Audio device: Intel Corporation Device 9d70 (rev 21)
 Subsystem: Dell Device 06f2
 Flags: fast devsel, IRQ 255
 Memory at d1220000 (64-bit, non-prefetchable) [disabled] [size=16K]
 Memory at d1200000 (64-bit, non-prefetchable) [disabled] [size=64K]
 Capabilities: [50] Power Management version 3
 Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+

please let me know if you need more info since it's the first time I report a Bug

Thank you

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-65.73~14.04.1-generic 3.19.8-ckt22
Uname: Linux 3.19.0-65-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: Unity
Date: Fri Jul 15 13:14:55 2016
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-trusty-amd64-osp1-20150720-0
InstallationDate: Installed on 2016-05-08 (68 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06
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: 01/17/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.4
dmi.board.name: 0T99TM
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.1.4:bd01/17/2016:svnDellInc.:pnLatitude3470:pvr:rvnDellInc.:rn0T99TM:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude 3470
dmi.sys.vendor: Dell Inc.