You have been subscribed to a public bug: Asus C300 (repurposed chromembook - bios flashed by Mr.Chromebox script) - Kubuntu Focal minimal fresh installation. The sound card is detected: I see it in the Plasma Widget, in pavucontrol, in alsamixer and it's not muted. I tried and add in /usr/share/alsa/ucm/chtmax98090/ the old style use case config files: no success. I tried and unmute speakers left and right in alsamixer: no success.
I rapidly tested Ubuntu Mate Focal fresh install: I had exactly the same issue. I'm running on the same rig Debian Bullseye, kernel 5.4: sound card output and input are both working perfectly - I noticed that in Kubuntu alsamixer Kubuntu when I open it I have an entry HDA IntelPCH (the HDMI card), while in Debian I find Pulseaudio. I attach the alsa-info.sh output. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-release-upgrader-core 1:20.04.17 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu24 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: KDE Date: Tue Apr 7 08:55:46 2020 InstallationDate: Installed on 2020-04-04 (2 days ago) InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200401) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: dist-upgrade UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dist-upgrade focal -- No sound from internal card chtmax98090 Bay Trail QWAWKS https://bugs.launchpad.net/bugs/1871306 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp