According to the attached AlsaInfo.txt the kernel doesn't have a driver compatible with your internal sound card:
!!Soundcards recognised by ALSA !!----------------------------- --- no soundcards --- So this is a kernel bug. Please try a newer version of Ubuntu like 18.04: http://releases.ubuntu.com/18.04 ** Package changed: alsa-driver (Ubuntu) => linux (Ubuntu) ** Summary changed: - PCI/internal sound card not detected + [Dell Inspiron 3558] PCI/internal sound card not detected -- 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/1820794 Title: [Dell Inspiron 3558] PCI/internal sound card not detected Status in linux package in Ubuntu: Confirmed Bug description: SOUND ONLY PLAY VIA BLUETOOTH AND NOT IN EARPHONE OR LAPTOP ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-168.218-generic 3.13.11-ckt39 Uname: Linux 3.13.0-168-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.29 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: Unity Date: Tue Mar 19 10:08:35 2019 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-trusty-amd64-20140620-0 InstallationDate: Installed on 2015-10-29 (1236 days ago) InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20140620-04:25 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: 04/22/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0XCR91 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA09:bd04/22/2016:svnDellInc.:pnInspiron3558:pvr:rvnDellInc.:rn0XCR91:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 3558 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820794/+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
