I am experiencing a similar problem to the one described here, but on the more recent "Yoga 9 14IAP7". It does also use the ALC287 in a similar configuration.
The speaker-bar above the keyboard works out of the box, but the bass speakers do not work. '$ cat /sys/class/sound/hwC0D0/subsystem_id' yields '0x17aa3801'. With this I also tried to apply the 'ALC287_FIXUP_IDEAPAD_BASS_SPK' and 'ALC269_FIXUP_HEADSET_MODE' pci quirks by adding a corresponding 'SND_PCI_QUIRK(0x17aa, 0x3801, "Yoga 9 14IAP7", ...)' to 'sound/pci/hda/patch_realtek.c'. But neither made a difference. I can also provide a dump of the HDA verbs send by a Windows 10 VM which were captured according to https://github.com/ryanprescott/realtek-verb- tools/wiki/How-to-sniff-verbs-from-a-Windows-sound-driver I tried to apply these verbs to /dev/snd/hwC0D0 using '$ hda-verb', but that did not work either. I tried Ubuntu first but am currently running Arch Linux since I am more familiar with building a kernel for it. Then I found this thread and compared the '$ alsa-info' output to mine (attached) and noticed that I am missing the 'DAC1', 'DAC2' and 'Bass Speaker Playback Switch' device nodes that were mentioned previously. I tried to use '$ hdajackretask' to reassign the the pins but I did not get it to work either. I don't think I am familiar enough with the linux sound stack to fix it myself and would be grateful for any help or further information on how to get Linux/Alsa to initialize/recognize the speakers. ** Attachment added: "alsa-info.txt" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1926165/+attachment/5597247/+files/alsa-info.txt -- 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/1926165 Title: Bass speakers not enabled on Lenovo Yoga 9i Status in alsa-driver package in Ubuntu: Confirmed Bug description: The Lenovo Yoga 9i has two sets of speakers: regular ones and bass speakers. The former work but while latter are detected and show up in alsamixer, they play no sound. Plugging headphones in and out or toggling any of the volume options does not fix the issue. A possibly related issue for a different Yoga version: https://bugzilla.kernel.org/show_bug.cgi?id=205755 ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: alsa-base 1.0.25+dfsg-0ubuntu7 ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12 Uname: Linux 5.11.0-16-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu65 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 4466 F.... pulseaudio ubuntu 6219 F.... alsamixer /dev/snd/pcmC0D0p: ubuntu 4466 F...m pulseaudio CasperMD5CheckResult: pass CasperVersion: 1.461 CurrentDesktop: ubuntu:GNOME Date: Mon Apr 26 15:10:05 2021 LiveMediaBuild: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:sofhdadsp successful Symptom_Card: Tiger Lake-LP Smart Sound Technology Audio Controller - sof-hda-dsp Symptom_Jack: Speaker, Internal Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: None of the above Title: [82BG, Realtek ALC287, Speaker, Internal] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/28/2021 dmi.bios.release: 1.40 dmi.bios.vendor: LENOVO dmi.bios.version: EHCN40WW dmi.board.asset.tag: No Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: Yoga 9 14ITL5 dmi.ec.firmware.release: 1.40 dmi.modalias: dmi:bvnLENOVO:bvrEHCN40WW:bd01/28/2021:br1.40:efr1.40:svnLENOVO:pn82BG:pvrYoga914ITL5:rvnLENOVO:rnLNVNB161216:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrYoga914ITL5: dmi.product.family: Yoga 9 14ITL5 dmi.product.name: 82BG dmi.product.sku: LENOVO_MT_82BG_BU_idea_FM_Yoga 9 14ITL5 dmi.product.version: Yoga 9 14ITL5 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1926165/+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
