This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1906101 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to alsa-lib in Ubuntu. https://bugs.launchpad.net/bugs/1906101 Title: no sound via speakers or headphone port on Carbon X1 6th Status in alsa-lib package in Ubuntu: New Status in linux package in Ubuntu: Incomplete Bug description: I recently upgraded from 18.04 to 20.04. The sound worked without problems before upgrade, but now I don'get any sound at all from the speakers or the headphone jack. This seems similar to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860697 (although that bug is reported as resolved). I tried adding model=generic dmic_detect=0 to my alsa-base.conf, as reported in that ticket, but it did not help. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: pulseaudio 1:13.99.1-1ubuntu3.8 ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65 Uname: Linux 5.4.0-54-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Sat Nov 28 18:36:36 2020 InstallationDate: Installed on 2018-07-27 (855 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: pulseaudio UpgradeStatus: Upgraded to focal on 2020-11-24 (4 days ago) dmi.bios.date: 10/13/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N23ET75W (1.50 ) dmi.board.asset.tag: Not Available dmi.board.name: 20KGCTO1WW 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:bvrN23ET75W(1.50):bd10/13/2020:svnLENOVO:pn20KGCTO1WW:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KGCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 6th dmi.product.name: 20KGCTO1WW dmi.product.sku: LENOVO_MT_20KG_BU_Think_FM_ThinkPad X1 Carbon 6th dmi.product.version: ThinkPad X1 Carbon 6th dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1906101/+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