This is the debdiff for groovy.

thx.


** Summary changed:

- No sound from internal card chtmax98090 - missing UCM2 files in alsa-ucm-conf 
1.2.2, available in alsa-ucm-conf 1.2.3
+ [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

** Also affects: alsa-ucm-conf (Ubuntu Groovy)
   Importance: High
     Assignee: Hui Wang (hui.wang)
       Status: Confirmed

** Also affects: alsa-ucm-conf (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Description changed:

+ [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
+  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
+  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
+  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

** Patch added: "alsa-ucm-conf_1.2.2-1ubuntu6.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/1871306/+attachment/5419838/+files/alsa-ucm-conf_1.2.2-1ubuntu6.debdiff

** Changed in: alsa-ucm-conf (Ubuntu Focal)
     Assignee: (unassigned) => Hui Wang (hui.wang)

** Changed in: alsa-ucm-conf (Ubuntu Focal)
   Importance: Undecided => High

** Changed in: alsa-ucm-conf (Ubuntu Focal)
       Status: New => In Progress

** Changed in: alsa-ucm-conf (Ubuntu Groovy)
       Status: Confirmed => In Progress

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https://bugs.launchpad.net/bugs/1871306

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

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