[Bug 1871306] Re: [SRU]No sound from internal card chtmax98090 - missing UCM2 files in alsa-ucm-conf 1.2.2, available in alsa-ucm-conf 1.2.3

[Gabriele Tettamanzi]

@Mathi
Test it: if you add Hui's ppa it should work out of the box.

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Title:
  [SRU]No sound from internal card chtmax98090 - missing UCM2 files in
  alsa-ucm-conf 1.2.2, available in alsa-ucm-conf 1.2.3

Status in alsa-ucm-conf package in Ubuntu:
  In Progress
Status in alsa-ucm-conf source package in Focal:
  In Progress
Status in alsa-ucm-conf source package in Groovy:
  In Progress

Bug description:
  [Impact]
  There is no ucm for ASUS C300 in the 20.04 and 20.10, as a result,
  the audio doesn't work on this machine after installing the 20.04 or
  20.10.

  [Fix]
  The ucm files for this machine are in the alsa-ucm-conf 1.2.3,
  cherry-pick them to ubuntu 20.04 and 20.10

  [Test Case]
  After booting up, use speaker to play some sound, it works well,
  plug a headset, play sound to headphone, it basically works but has
  some crankling noise, it is a kernel issue for this noise.

  [Regression Risk]
  This SRU adds new ucm files, If the machine uses the audio driver
  of chtmax98090, it will apply this new added ucm files, there will
  be speaker/headphone in the UI. So the possible regression is with
  this SRU, users could see the audio devices in the UI but the audio
  doesn't work (without this SRU, users couldn't see the audio devices
  in the UI at all and the audio doesn't work). This possibility is
  low since we tested it on the ASUS C300.


  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)
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu24
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  gabriel3    937 F.... pulseaudio
   /dev/snd/controlC0:  gabriel3    937 F.... pulseaudio
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 20.04
  InstallationDate: Installed on 2020-04-04 (3 days ago)
  InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200401)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 8087:07dc Intel Corp.
   Bus 001 Device 003: ID 13d3:5657 IMC Networks USB2.0 UVC HD Webcam
   Bus 001 Device 002: ID 062a:4101 MosArt Semiconductor Corp. Wireless Keyboard/Mouse
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: GOOGLE Quawks
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=225cba91-c164-4882-95d4-4f9854a80fe9 ro quiet splash
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-21-generic N/A
   linux-backports-modules-5.4.0-21-generic  N/A
   linux-firmware                            1.187
  Tags:  focal
  Uname: Linux 5.4.0-21-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 03/17/2020
  dmi.bios.vendor: coreboot
  dmi.bios.version: MrChromebox-4.11.2
  dmi.board.name: Quawks
  dmi.board.vendor: GOOGLE
  dmi.board.version: 1.0
  dmi.chassis.type: 9
  dmi.chassis.vendor: GOOGLE
  dmi.modalias: dmi:bvncoreboot:bvrMrChromebox-4.11.2:bd03/17/2020:svnGOOGLE:pnQuawks:pvr1.0:rvnGOOGLE:rnQuawks:rvr1.0:cvnGOOGLE:ct9:cvr:
  dmi.product.name: Quawks
  dmi.product.version: 1.0
  dmi.sys.vendor: GOOGLE

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