Same here; the upgrade to alsa-ucm-conf 1.2.2-1ubuntu0.3 alone wasn't enough to fix the issue on my Regolith install (Ubuntu 20.04.1).
However, after upgrading I once more tried the fixes described in the following article (essentially the same workarounds that others have suggested in this thread) and this time it worked! Not quite on par with the sound that comes out of the speakers on Win 10, but good enough. https://www.sysorchestra.com/linux-mint-20-upgrade-on-lenovo-thinkpad-x1 -carbon-7th-sound-and-fingerprints/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to alsa-ucm-conf in Ubuntu. https://bugs.launchpad.net/bugs/1872108 Title: Bass not on working Lenovo ThinkPad X1 Carbon 7th gen running focal Status in alsa-ucm-conf package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: Related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1845677/comments/14 Audio works and the volume seems reasonable however the audio is noticeably missing bass giving everything a high treble sound. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: alsa-ucm-conf 1.2.2-1 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Fri Apr 10 09:17:33 2020 Dependencies: InstallationDate: Installed on 2020-04-08 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-ucm-conf UpgradeStatus: No upgrade log present (probably fresh install) --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Dependencies: DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-04-08 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) Package: linux PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/1872108/+subscriptions -- 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
