In other words: We don't have enough information to support this hw (speakers). If vendor is not willing to add support to BIOS or give us necessary information to add the proper initialization for the I2C amplifiers to the driver, the only way is the reverse engineering (grab the initialization HDA verbs in qemu or so). The another problem is that the I2C master block in the Realtek codecs is not documented. Those registers are hidden as the vendor specific coefficient registers.
For the mic volume - you may try to play with PGA / Dmic volume controls in the native ALSA mixer application (like alsamixer). But it should work with latest pulseaudio / UCM configuration. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1845797 Title: Microphone not detected Lenovo Yoga S940 Status in Linux: Confirmed Status in alsa-driver package in Ubuntu: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: Ubuntu 19.10 as well as 19.04 do not detect the microphone in Lenovo Yoga S940 Attached the screen of gnome sound control panel. Inxi output: System: Host: ******** Kernel: 5.3.0-13-generic x86_64 bits: 64 Desktop: Gnome 3.34.0 Distro: Ubuntu 19.10 (Eoan Ermine) Machine: Type: Laptop System: LENOVO product: 81Q7 v: Lenovo Yoga S940-14IWL serial: <root required> Mobo: LENOVO model: LNVNB161216 v: SDK0J40709 WIN serial: <root required> UEFI: LENOVO v: AKCN34WW date: 06/12/2019 CPU: Topology: Quad Core model: Intel Core i7-8565U bits: 64 type: MT MCP L2 cache: 8192 KiB Speed: 1161 MHz min/max: 400/4600 MHz Core speeds (MHz): 1: 1161 2: 1195 3: 1848 4: 976 5: 1041 6: 1209 7: 1061 8: 2229 Audio: Device-1: Intel Cannon Point-LP High Definition Audio driver: snd_hda_intel Sound Server: ALSA v: k5.3.0-13-generic --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: daniele 2239 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 19.10 InstallationDate: Installed on 2019-09-12 (17 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: LENOVO 81Q7 Package: pulseaudio 1:13.0-1ubuntu1 PackageArchitecture: amd64 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-13-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 RelatedPackageVersions: linux-restricted-modules-5.3.0-13-generic N/A linux-backports-modules-5.3.0-13-generic N/A linux-firmware 1.182 Tags: eoan Uname: Linux 5.3.0-13-generic x86_64 UpgradeStatus: Upgraded to eoan on 2019-09-21 (8 days ago) UserGroups: adm cdrom dip docker lpadmin microk8s plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/12/2019 dmi.bios.vendor: LENOVO dmi.bios.version: AKCN34WW dmi.board.asset.tag: No Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga S940-14IWL dmi.modalias: dmi:bvnLENOVO:bvrAKCN34WW:bd06/12/2019:svnLENOVO:pn81Q7:pvrLenovoYogaS940-14IWL:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoYogaS940-14IWL: dmi.product.family: Yoga S940-14IWL dmi.product.name: 81Q7 dmi.product.sku: LENOVO_MT_81Q7_BU_idea_FM_Yoga S940-14IWL dmi.product.version: Lenovo Yoga S940-14IWL dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1845797/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
