Thanks for posting the fix, I tired it out on my Yoga 9 14ITL5 on both the Fedora 35 5.14.18-300.fc35.x86_64 kernel and the Ubuntu 21.10 5.13.0-19-generic kernel with minimal luck. With DAC1 and DAC2 at maximum, the rear speaker sounds like nothing is coming out of it. When DAC1 is turned down to 0, there is audio coming out of the rear speaker, however, the audio output quality is rather poor and tinny.
Looking at the kernel source, https://github.com/torvalds/linux/commit/9ebaef0540a981093bce5df15af32354d32391d9 it appears that the kernel version the fix was first released in was 5.13rc4 and looks to appear in all newer tags, so the fix should be in use on my system. Based on the experiences shown above, what I'm experiencing doesn't seem to be the right behaviour. -- 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
