Please open a new bug to track it. The solution in the github is for ucm1, now 20.04 uses ucm2, we need to wait for the ucm2 solution from upstream, to make the bass speaker work is easy, but to make it work under alsa-lib, pulseaudio and gnome is not easy, so upstream is still working on it.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1845677/+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
