I vaguely recall sound didn't work on Cherry Trail systems like this until recently. Could you please try live booting some newer versions of Ubuntu and tell us which versions have working sound?
18.04: http://releases.ubuntu.com/18.04/ 18.10: http://releases.ubuntu.com/18.10/ 19.04: http://cdimages.ubuntu.com/daily-live/current/ -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1816429 Title: [bytcr-rt5651 - bytcr-rt5651, playback] Pulseaudio fails to detect card Status in pulseaudio package in Ubuntu: Incomplete Bug description: I'm having a sound problem ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: pulseaudio 1:8.0-0ubuntu3.10 ProcVersionSignature: Ubuntu 4.15.0-45.48~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-45-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: erkan 2121 F.... pulseaudio CurrentDesktop: Unity Date: Mon Feb 18 16:48:58 2019 InstallationDate: Installed on 2019-02-18 (0 days ago) InstallationMedia: Ubuntu 16.04.5 LTS "Xenial Xerus" - Release amd64 (20180731) SourcePackage: pulseaudio Symptom: audio Symptom_Card: bytcr-rt5651 - bytcr-rt5651 Title: [bytcr-rt5651 - bytcr-rt5651, playback] Pulseaudio fails to detect card UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/06/2017 dmi.bios.version: LC-BI-14-Y116CR210-424-B dmi.board.asset.tag: Default string dmi.board.name: Cherry Trail CR dmi.board.vendor: AMI Corporation dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 10 dmi.chassis.version: Default string dmi.modalias: dmi:bvn:bvrLC-BI-14-Y116CR210-424-B:bd12/06/2017:svnI-LifeDigitalTechnologiesLLC:pnZEDAIRTES:pvrDefaultstring:rvnAMICorporation:rnCherryTrailCR:rvrDefaultstring:cvn:ct10:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: ZED AIR TES dmi.product.version: Default string dmi.sys.vendor: I-Life Digital Technologies LLC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1816429/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
