I tried updating libasound2(-data), pulseaudio and kernel to 5.3.0-46 (not 
oem!) in my Mint 19.3 Box (Bionic). Also removed manual changes like blacklist 
snd_hda_intel and snd_soc_skl and also removed the "ucm" added by the script i 
found on github (posted above) from /usr/share/alsa/ucm/sof-skl_hda_card.
After that, I rebooted and sound and mic came up grad - except bass speaker 
whereas the sound is 1. mostly treble and 2. sound in general was quieter as 
before.

My BIOS starts with N2H, so i checked the new ucm conf and tried to play
around with the bass settings there and diff'ed with my HiFi.conf i had
before but no luck. No base. What i'am doing wrong?

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https://bugs.launchpad.net/bugs/1845677

Title:
  volume control doesn't work (it's just on/off) on Lenovo ThinkPad X1
  Carbon 7th gen

Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-osp1 package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Invalid
Status in linux-oem-osp1 source package in Bionic:
  Fix Committed
Status in linux source package in Eoan:
  In Progress
Status in linux-oem-osp1 source package in Eoan:
  Invalid
Status in linux source package in Focal:
  In Progress
Status in linux-oem-osp1 source package in Focal:
  Invalid

Bug description:
  [Impact]
  There are 2 physical speakers on the X1 7th, and one is Bass speaker
  and connect to a DAC which doesn't have volume control on it.

  [Fix]
  adjust that speaker to connect to a DAC which has volume control
  capability.

  
  [Test Case]
  adjust the output volume from UI and play sound from speaker.

  
  [Regression Risk]
  Low, these change is specific to 2 lenovo machines.


  On my Lenovo ThinkPad X1 Carbon 7th generation using the built-in
  speakers, the volume is either off or on, there's no gradation in
  volume when I move the slider up or down.

  If I enable Over-Amplification than there's gradation in volume when I
  turn the volume up past 100%, but not for 0-100%.

  This problem does not occur with a headset plugged into the 3.5mm
  jack.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: linux-image-5.3.0-12-generic 5.3.0-12.13
  ProcVersionSignature: Ubuntu 5.3.0-12.13-generic 5.3.0
  Uname: Linux 5.3.0-12-generic x86_64
  ApportVersion: 2.20.11-0ubuntu7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jik        3746 F.... pulseaudio
   /dev/snd/pcmC0D0p:   jik        3746 F...m pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Sep 27 11:07:44 2019
  InstallationDate: Installed on 2019-09-12 (14 days ago)
  InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
  MachineType: LENOVO 20QD001VUS
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-12-generic 
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.3.0-12-generic N/A
   linux-backports-modules-5.3.0-12-generic  N/A
   linux-firmware                            1.182
  SourcePackage: linux
  UpgradeStatus: Upgraded to eoan on 2019-09-20 (7 days ago)
  dmi.bios.date: 07/04/2019
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N2HET30W (1.13 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20QD001VUS
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrN2HET30W(1.13):bd07/04/2019:svnLENOVO:pn20QD001VUS:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20QD001VUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X1 Carbon 7th
  dmi.product.name: 20QD001VUS
  dmi.product.sku: LENOVO_MT_20QD_BU_Think_FM_ThinkPad X1 Carbon 7th
  dmi.product.version: ThinkPad X1 Carbon 7th
  dmi.sys.vendor: LENOVO

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