Public bug reported: System of type: https://certification.ubuntu.com/hardware/202006-28011
After install of the 5.10.0-14-generic kernel certain audio channels from the Realtek sound card and USB devices are unavailable (Realtek Rear Output, USB webcam input). Reverting to the 5.8.0-36-generic kernel restores functionality. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.10.0-14-generic 5.10.0-14.15 ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11 Uname: Linux 5.10.0-14-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu59 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: joc 4153 F.... pulseaudio /dev/snd/controlC0: joc 4153 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Tue Mar 2 09:51:05 2021 InstallationDate: Installed on 2021-02-05 (24 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210123) MachineType: LENOVO 30E0CTO1WW ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-14-generic root=UUID=163f7dec-2064-488a-b909-389b01172eda ro quiet splash vt.handoff=7 RebootRequiredPkgs: dbus dbus RelatedPackageVersions: linux-restricted-modules-5.10.0-14-generic N/A linux-backports-modules-5.10.0-14-generic N/A linux-firmware 1.194 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/13/2020 dmi.bios.release: 1.14 dmi.bios.vendor: LENOVO dmi.bios.version: S07KT0EA dmi.board.name: 1046 dmi.board.vendor: LENOVO dmi.board.version: NO DPK dmi.chassis.type: 3 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.13 dmi.modalias: dmi:bvnLENOVO:bvrS07KT0EA:bd11/13/2020:br1.14:efr1.13:svnLENOVO:pn30E0CTO1WW:pvrThinkStationP620:rvnLENOVO:rn1046:rvrNODPK:cvnLENOVO:ct3:cvrNone: dmi.product.family: ThinkStation P620 dmi.product.name: 30E0CTO1WW dmi.product.sku: LENOVO_MT_30E0_BU_Think_FM_ThinkStation P620 dmi.product.version: ThinkStation P620 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug breezy hirsute -- 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/1917435 Title: Audio channels unavailable after install of 5.10.0-14 Status in linux package in Ubuntu: Confirmed Bug description: System of type: https://certification.ubuntu.com/hardware/202006-28011 After install of the 5.10.0-14-generic kernel certain audio channels from the Realtek sound card and USB devices are unavailable (Realtek Rear Output, USB webcam input). Reverting to the 5.8.0-36-generic kernel restores functionality. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.10.0-14-generic 5.10.0-14.15 ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11 Uname: Linux 5.10.0-14-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu59 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: joc 4153 F.... pulseaudio /dev/snd/controlC0: joc 4153 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Tue Mar 2 09:51:05 2021 InstallationDate: Installed on 2021-02-05 (24 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210123) MachineType: LENOVO 30E0CTO1WW ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-14-generic root=UUID=163f7dec-2064-488a-b909-389b01172eda ro quiet splash vt.handoff=7 RebootRequiredPkgs: dbus dbus RelatedPackageVersions: linux-restricted-modules-5.10.0-14-generic N/A linux-backports-modules-5.10.0-14-generic N/A linux-firmware 1.194 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/13/2020 dmi.bios.release: 1.14 dmi.bios.vendor: LENOVO dmi.bios.version: S07KT0EA dmi.board.name: 1046 dmi.board.vendor: LENOVO dmi.board.version: NO DPK dmi.chassis.type: 3 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.13 dmi.modalias: dmi:bvnLENOVO:bvrS07KT0EA:bd11/13/2020:br1.14:efr1.13:svnLENOVO:pn30E0CTO1WW:pvrThinkStationP620:rvnLENOVO:rn1046:rvrNODPK:cvnLENOVO:ct3:cvrNone: dmi.product.family: ThinkStation P620 dmi.product.name: 30E0CTO1WW dmi.product.sku: LENOVO_MT_30E0_BU_Think_FM_ThinkStation P620 dmi.product.version: ThinkStation P620 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1917435/+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