Hi, Confirming this started with 5.3.0-42 and also occurs in 5.3.0-45. Tried other fixes. Finally, I had to revert to 5.3.0-40.
Machine: Lenovo YOGA C930 laptop OS: Linux Mint 19.3 / Ubuntu 18.04 Other info: ➜ ~ uname -r 5.3.0-42-generic ➜ ~ lspci -nnk | grep -A2 Audio 00:1f.3 Multimedia audio controller [0401]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21) Subsystem: Lenovo Sunrise Point-LP HD Audio [17aa:3831] Kernel driver in use: snd_soc_skl Kernel modules: snd_hda_intel, snd_soc_skl ➜ ~ sudo dmesg | grep -i audio [ 0.103742] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 3.714632] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 3.957703] HDMI HDA Codec ehdaudio0D2: Max dais supported: 3 [ 214.794189] Modules linked in: rfcomm xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter br_netfilter bridge stp llc ccm hid_sensor_als hid_sensor_accel_3d hid_sensor_trigger industrialio_triggered_buffer kfifo_buf hid_sensor_iio_common industrialio hid_sensor_custom 8250_dw hid_sensor_hub snd_soc_dmic aufs wacom hid_multitouch snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_soc_skl(-) snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc snd_soc_sst_ipc overlay snd_soc_sst_dsp bnep snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_intel mei_hdcp kvm_intel snd_intel_nhlt intel_rapl_msr snd_hda_codec kvm snd_hda_core irqbypass snd_hwdep snd_pcm iwlmvm snd_seq_midi crct10dif_pclmul nls_iso8859_1 snd_seq_midi_event crc32_pclmul ghash_clmulni_intel mac80211 [ 215.890790] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 215.902992] HDMI HDA Codec ehdaudio0D2: Max dais supported: 3 -- 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/1869823 Title: No sound after kernel update Status in linux package in Ubuntu: Confirmed Bug description: With the -45 kernel, sound output and input are unavailable. Output shows a Dummy device, no Input devices. This is a regression from the -40 kernel where the Output was working (no Input though). Attempted to use SOF, i.e. the fix mentioned in https://github.com/thesofproject/linux/issues/1877 This results in system freezes, failed boots, and failure to wake from sleep. Edit: I have now noticed that it fails to wake from sleep in general with this kernel. Even without the SOF driver. Ubuntu 5.3.0-45.37~18.04.1-generic 5.3.18 lspci: https://pastebin.com/6ft2qvTT dmesg: https://pastebin.com/4DLg6wy4 Thanks, Matt --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.13 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19.3 EcryptfsInUse: Yes InstallationDate: Installed on 2020-03-17 (13 days ago) InstallationMedia: Linux Mint 19.3 "Tricia" - Release amd64 20191213 IwConfig: gpd0 no wireless extensions. wlp0s20f3 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. Inspiron 7591 2n1 Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-45-generic root=UUID=df0d1f5a-7ff4-440f-bac3-f31750947cd4 ro quiet splash acpi_osi=Linux vt.handoff=1 ProcVersionSignature: Ubuntu 5.3.0-45.37~18.04.1-generic 5.3.18 RelatedPackageVersions: linux-restricted-modules-5.3.0-45-generic N/A linux-backports-modules-5.3.0-45-generic N/A linux-firmware 1.187 Tags: tricia Uname: Linux 5.3.0-45-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 12/24/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.4.0 dmi.board.name: 0NNW5N dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 31 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.4.0:bd12/24/2019:svnDellInc.:pnInspiron75912n1:pvr:rvnDellInc.:rn0NNW5N:rvrA00:cvnDellInc.:ct31:cvr: dmi.product.family: Inspiron dmi.product.name: Inspiron 7591 2n1 dmi.product.sku: 0950 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869823/+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