Public bug reported:
All 3 models need the appropriate HDA verbs sent to properly initialize
the sound hardware.
Additionally, the Legion 15IMHG05 needs automute disabled otherwise
speaker output will not return after removing headphones.
The good news is that I have working patches for all 3.
However, the 13s Gen2 reportedly has some weirdness on the volume
control. I don't have this model of laptop so there's not a lot I can
do. It seems tuning the volume up and down using the keys on the
keyboard can jump the volume up and down in large increments. Volume
adjustments via a GUI do not have this issue.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-5.11.0-25-generic 5.11.0-25.27
ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22
Uname: Linux 5.11.0-25-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: hiryu 7243 F.... pulseaudio
/dev/snd/controlC0: hiryu 7243 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Thu Aug 5 10:17:57 2021
InstallationDate: Installed on 2021-04-23 (104 days ago)
InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
MachineType: LENOVO 82K6
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-25-generic
root=UUID=825f1536-7d58-4097-9779-e5df2db0a6eb ro quiet splash
nvidia-drm.modeset=0 resume=/dev/mapper/swap thinkpad_acpi.fan_control=1
bluetooth.disable_ertm acpi_backlight=video vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.11.0-25-generic N/A
linux-backports-modules-5.11.0-25-generic N/A
linux-firmware 1.197.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/18/2021
dmi.bios.release: 1.33
dmi.bios.vendor: LENOVO
dmi.bios.version: H1CN33WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0R32862 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion 7 16ITHg6
dmi.ec.firmware.release: 1.33
dmi.modalias:
dmi:bvnLENOVO:bvrH1CN33WW:bd07/18/2021:br1.33:efr1.33:svnLENOVO:pn82K6:pvrLegion716ITHg6:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegion716ITHg6:
dmi.product.family: Legion 7 16ITHg6
dmi.product.name: 82K6
dmi.product.sku: LENOVO_MT_82K6_BU_idea_FM_Legion 7 16ITHg6
dmi.product.version: Legion 7 16ITHg6
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug hirsute
** Patch added: "linux-5.12-sound-legion-15imhg05-0.0.9-legion-001.patch"
https://bugs.launchpad.net/bugs/1939052/+attachment/5516149/+files/linux-5.12-sound-legion-15imhg05-0.0.9-legion-001.patch
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https://bugs.launchpad.net/bugs/1939052
Title:
No sound on Lenovo laptop models Legion 15IMHG05, Yoga 7 14ITL5, and
13s Gen2
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