Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/
We need to do a kernel bisection if latest kernel doesn't have fix. -- 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/1859781 Title: snd_usb_audio not working in 5.3.0-26-lowlatency Status in linux package in Ubuntu: Incomplete Bug description: An usb-interface (M-Audio Fast Track C400) is being recognized but not its pcm devices. The problem does not appear with kernel 5.3.0-24-lowlatency. A detailed report can be found here: https://askubuntu.com/questions/1201968/ubuntu-studio-19-10-usb-sound-card-not-working-anymore-appears-in-proc-asound ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-26-lowlatency 5.3.0-26.28 ProcVersionSignature: Ubuntu 5.3.0-26.28-lowlatency 5.3.13 Uname: Linux 5.3.0-26-lowlatency x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: sihorn 1767 F.... pulseaudio CurrentDesktop: XFCE Date: Wed Jan 15 09:57:00 2020 InstallationDate: Installed on 2019-11-27 (48 days ago) InstallationMedia: Ubuntu-Studio 19.10 "Eoan Ermine" - Release amd64 (20191017) IwConfig: lo no wireless extensions. enp3s0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. B85-HD3 ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-26-lowlatency root=UUID=c01dfb46-88ab-4289-8362-b7871c21ef2f ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-5.3.0-26-lowlatency N/A linux-backports-modules-5.3.0-26-lowlatency N/A linux-firmware 1.183.3 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/04/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: B85-HD3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd07/04/2014:svnGigabyteTechnologyCo.,Ltd.:pnB85-HD3:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnB85-HD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: B85-HD3 dmi.product.sku: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859781/+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
