Public bug reported:
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: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade focal
** Attachment added: "alsa-info report"
https://bugs.launchpad.net/bugs/1871306/+attachment/5348445/+files/alsa-info.txt.QjNiOlkzFI
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https://bugs.launchpad.net/bugs/1871306
Title:
No sound from internal card chtmax98090 Bay Trail QWAWKS
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