This bug is awaiting verification that the linux/5.4.0-90.101 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- 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/1939052 Title: No sound on Lenovo laptop models Legion 15IMHG05, Yoga 7 14ITL5, and 13s Gen2 Status in linux package in Ubuntu: Fix Committed Status in linux source package in Focal: Fix Committed Status in linux source package in Hirsute: Fix Committed Status in linux source package in Impish: Fix Committed Bug description: [Impact] The speaker on a coule of Lenovo laptops can't output sound, need to do special initialization. [Fix] Backport a upstream patch, the patch will initialize the speaker amplifier with special verbs. [Test] Booting the patched kernel, output the sound to speaker, could heaer the sound. [Where problems could occur] The patch set the quirk to some lenovo machines with subsystem id, there is no regression risk for other machines. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939052/+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
