Not fixed. I had upgraded to 20.04 on 24th April, and everything worked. Today, it does not. My sound-card (the one I use) no longer shows up. The nVidia HDMI sound-card still does, (but I have not had an HDMI monitor for awhile, now).
I have tried every fix I can possibly find on the web, but the funny thing is, it worked for three days! Even the dmic_detect=0 trick did not work. kernel 5.4.0-26 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1860697 Title: Sound doesn't work on Lenovo X1 Carbon 7th with 20.04 Status in linux package in Ubuntu: Fix Released Status in linux-firmware package in Ubuntu: Fix Released Bug description: I recently upgraded from 18.04+HWE kernel to 20.04 and now sound, both output and input, does not work. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-9-generic 5.4.0-9.12 ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3 Uname: Linux 5.4.0-9-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu15 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: ubuntu:GNOME Date: Thu Jan 23 12:00:01 2020 InstallationDate: Installed on 2019-09-06 (139 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) MachineType: LENOVO 20QDCTO1WW ProcEnviron: SHELL=/bin/bash LANG=en_US.UTF-8 TERM=xterm-256color XDG_RUNTIME_DIR=<set> PATH=(custom, user) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-9-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-9-generic N/A linux-backports-modules-5.4.0-9-generic N/A linux-firmware 1.184 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-01-22 (1 days ago) dmi.bios.date: 12/09/2019 dmi.bios.vendor: LENOVO dmi.bios.version: N2HET43W (1.26 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QDCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2HET43W(1.26):bd12/09/2019:svnLENOVO:pn20QDCTO1WW:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20QDCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 7th dmi.product.name: 20QDCTO1WW 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/1860697/+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
