@Prajwal, We could not find that machine to debug, since this issue happens randomly, we have no idea what introduces this issue.
Could you try the latest mainline kernel to see if it works or not (https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc4/), if it still could not work, it is better to report this issue to upstream kernel bugzilla (https://bugzilla.kernel.org/enter_bug.cgi?product=Drivers), let community help fix this bug, then we will integrate the fix to ubuntu kernel. -- 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/1852067 Title: [HP ZBook Studio G5, Conexant Generic, Speaker, Internal] No sound from built-in speakers after disconnecting headphones. Prior to connecting headphones speakers works ok. Status in linux package in Ubuntu: Incomplete Bug description: Steps to replicate the bug. 1. Start laptop with Ubuntu 18.04.3 LTS. Sound from built-in speakers works fine. Settings -> Sound -> Output shows one device: Speakers - Built-in Audio 2. Connect headphones (wired, mini-jack connector). Sound from headphones works fine. No sound from built-in speakers (which is OK, obviously). Settings -> Sound -> Output shows one device: Headphones - Built-in Audio 3. Disconnect headphones from computer. No sound from built-in speakers. Settings -> Sound -> Output shows one device: Speakers - Built-in Audio (ON, high volume) Changing volume, turning ON -> OFF -> ON, user logout->login doesn't help. Only full laptop restart helps. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21 Uname: Linux 5.0.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: marcin 2115 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Nov 11 12:26:58 2019 InstallationDate: Installed on 2019-04-02 (223 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gdm 1672 F.... pulseaudio marcin 2115 F.... pulseaudio Symptom_Jack: Speaker, Internal Symptom_Type: No sound at all Title: [HP ZBook Studio G5, Conexant Generic, Speaker, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/15/2019 dmi.bios.vendor: HP dmi.bios.version: Q71 Ver. 01.08.00 dmi.board.name: 8427 dmi.board.vendor: HP dmi.board.version: KBC Version 16.3A.00 dmi.chassis.asset.tag: 5CD91018X5 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrQ71Ver.01.08.00:bd07/15/2019:svnHP:pnHPZBookStudioG5:pvr:rvnHP:rn8427:rvrKBCVersion16.3A.00:cvnHP:ct10:cvr: dmi.product.family: 103C_5336AN HP ZBook Studio dmi.product.name: HP ZBook Studio G5 dmi.product.sku: 2YN61AV dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852067/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
