I can't see there is any PCI device from the alsainfo.txt log, if the kernel can't see the device it could be related to something that is below the kernel level. You can also upload the output of 'lspci -vvnn' for us to check. Could you also check if there are settings in the BIOS about audio? Perhaps you can try to reset the BIOS to the default and see what happens.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1586641 Title: PCI/internal sound card not detected Status in alsa-driver package in Ubuntu: New Bug description: My sound card is not even detected and alsamixer do nothing. I tried oem-audio-hda-daily-lts-xenial-dkms - 0.201605271732~ubuntu16.04.1 https://code.launchpad.net/~ubuntu-audio- dev/+archive/ubuntu/alsa-daily/+packages like it was described here https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS but it didn't worked. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: GNOME Date: Sat May 28 15:20:10 2016 EcryptfsInUse: Yes InstallationDate: Installed on 2016-05-27 (1 days ago) InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Release amd64 (20160421) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Title: PCI/internal sound card not detected UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/14/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.0 dmi.board.name: 0T6HHJ dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.0:bd02/14/2016:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn0T6HHJ:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7470 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1586641/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp