Odd Behavior of this Bug: 1. The audio device is not detected (not by gnome and not by lshw -C multimedia) and won't play sounds unless it's the "bell" from the terminal.
2. If headphones are plugged in, there won't be an detected audio device but lightly distorted sound is played thru headphones. 2. /proc/asound/card1/codec#0 is present and readable Codec: Realtek ALC892 Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x10ec0892 [...] -- 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/1879939 Title: Audio stopped working after 5.4.0-31 kernel update Status in linux package in Ubuntu: Confirmed Bug description: After rebooting following a system update where kernel 5.4.0-31 got installed, the main audio output stopped working. HDMI audio and USB headphones still work. Rebooting using the previous kernel (5.4.0-29) restores audio. Description: Ubuntu 20.04 LTS Release: 20.04 log of the update that broke audio: Install: linux-image-5.4.0-31-generic:amd64 (5.4.0-31.35), linux-headers-5.4.0-31-generic:amd64 (5.4.0-31.35), linux-modules-extra-5.4.0-31-generic:amd64 (5.4.0-31.35), linux-modules-5.4.0-31-generic:amd64 (5.4.0-31.35), linux-headers-5.4.0-31:amd64 (5.4.0-31.35) Upgrade: bind9-dnsutils:amd64 (1:9.16.1-0ubuntu2, 1:9.16.1-0ubuntu2.1), linux-headers-generic:amd64 (5.4.0.29.34, 5.4.0.31.36), linux-libc-dev:amd64 (5.4.0-29.33, 5.4.0-31.35), linux-image-generic:amd64 (5.4.0.29.34, 5.4.0.31.36), bind9-host:amd64 (1:9.16.1-0ubuntu2, 1:9.16.1-0ubuntu2.1), dnsutils:amd64 (1:9.16.1-0ubuntu2, 1:9.16.1-0ubuntu2.1), linux-generic:amd64 (5.4.0.29.34, 5.4.0.31.36), bind9-libs:amd64 (1:9.16.1-0ubuntu2, 1:9.16.1-0ubuntu2.1) ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-modules-extra-5.4.0-31-generic 5.4.0-31.35 ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34 Uname: Linux 5.4.0-31-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: zeyelth 1921 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Thu May 21 13:05:44 2020 HibernationDevice: RESUME=UUID=8ede6c97-084e-4c19-b235-2ba8b2c5565c InstallationDate: Installed on 2017-10-29 (934 days ago) InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) MachineType: System manufacturer System Product Name ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-31-generic root=/dev/mapper/kubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-31-generic N/A linux-backports-modules-5.4.0-31-generic N/A linux-firmware 1.187 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-08 (12 days ago) dmi.bios.date: 04/16/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1003 dmi.board.asset.tag: Default string dmi.board.name: ROG ZENITH EXTREME dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1003:bd04/16/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGZENITHEXTREME:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1879939/+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
