Forgot to add kernel config diff : < # Linux/x86 5.3.0-40-generic Kernel Configuration --- > # Linux/x86 5.3.0-42-generic Kernel Configuration 41c41 < CONFIG_VERSION_SIGNATURE="Ubuntu 5.3.0-40.32~18.04.1-generic 5.3.18" --- > CONFIG_VERSION_SIGNATURE="Ubuntu 5.3.0-42.34~18.04.1-generic 5.3.18" 6550a6551 > CONFIG_SND_HDA_INTEL_DETECT_DMIC=y 6577a6579 > CONFIG_SND_INTEL_NHLT=m 9637d9638 < CONFIG_ALLOW_LOCKDOWN_LIFT_BY_SYSRQ=y
-- 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/1868165 Title: [X1 Carbon 7th ed] 5.3.0-42 loses internal audio; regression from 5.3.0-40 Status in linux package in Ubuntu: Confirmed Bug description: I have a Lenovo ThinkPad X1 Carbon 7th edition laptop running Ubuntu 19.10 desktop. I recently applied a software update that contained a new kernel, 5.3.0-42, and upon restarting, the internal audio interface was not found; internal speakers and the headphone output were unusable. Upon rebooting with the previous kernel, 5.3.0-40, the problem went away again. Subsequent testing confirms this is repeatable. Some relevant lines from `dmesg` follow. On kernel 5.3.0-40 (working): [ 4.386007] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 4.391825] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' [ 4.392016] thermal thermal_zone5: failed to read out thermal zone (-61) [ 4.430083] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC285: line_outs=2 (0x14/0x17/0x0/0x0/0x0) type:speaker [ 4.430085] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 4.430087] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0) [ 4.430087] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [ 4.430088] snd_hda_codec_realtek hdaudioC0D0: inputs: [ 4.430089] snd_hda_codec_realtek hdaudioC0D0: Mic=0x19 On kernel 5.3.0-42 (broken): [ 3.076809] i915 0000:00:02.0: fb0: i915drmfb frame buffer device [ 3.088029] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 3.173463] snd_soc_skl 0000:00:1f.3: Direct firmware load for 9dc8-LENOVO-TP-N2H-4752-tplg.bin failed with error -2 [ 3.173465] snd_soc_skl 0000:00:1f.3: tplg fw 9dc8-LENOVO-TP-N2H-4752-tplg.bin load failed with -2, falling back to dfw_sst.bin [ 3.173480] snd_soc_skl 0000:00:1f.3: Direct firmware load for dfw_sst.bin failed with error -2 [ 3.173481] snd_soc_skl 0000:00:1f.3: Fallback tplg fw dfw_sst.bin load failed with -2 [ 3.173484] snd_soc_skl 0000:00:1f.3: Failed to init topology! [ 3.173486] snd_soc_skl 0000:00:1f.3: ASoC: failed to probe component -2 [ 3.173496] skl_hda_dsp_generic skl_hda_dsp_generic: ASoC: failed to instantiate card -2 [ 3.173508] skl_hda_dsp_generic: probe of skl_hda_dsp_generic failed with error -2 I've attached `lspci -vnvn` and `dmesg` output for both the -40 and -42 kernels. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-40-generic 5.3.0-40.32 ProcVersionSignature: Ubuntu 5.3.0-40.32-generic 5.3.18 Uname: Linux 5.3.0-40-generic x86_64 ApportVersion: 2.20.11-0ubuntu8.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gamache 1768 F.... pulseaudio /dev/snd/controlC1: gamache 1768 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Thu Mar 19 15:08:14 2020 InstallationDate: Installed on 2019-11-21 (119 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20QD0007US ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-40-generic root=UUID=90290cff-6557-4384-b8a9-1b83f860ea01 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.3.0-40-generic N/A linux-backports-modules-5.3.0-40-generic N/A linux-firmware 1.183.4 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/21/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2HET46W (1.29 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QD0007US dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2HET46W(1.29):bd02/21/2020:svnLENOVO:pn20QD0007US:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20QD0007US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 7th dmi.product.name: 20QD0007US dmi.product.sku: LENOVO_MT_20QD_BU_Think_FM_ThinkPad X1 Carbon 7th dmi.product.version: ThinkPad X1 Carbon 7th dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1868165/+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
