I managed to get audio output going using amixer: amixer sset Master mute unmute 1- 1+
Both parts are necessary (mute/unmute and volume adjustment). Just muting/unmuting or adjusting the volume does not bring back audio output. I can put it in my start script without adding any possibly insufficient delay prior to it. I still don't understand why this is needed. If playback is delayed long enough, the "audio system" (I don't know which component) seems to do something similar internally and it magically works. However, this is not how it is supposed to work, because a user (or a start script) can not know how long the delay actually needs to be. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1997224 Title: [NUC12WSKi5, Realtek ALC269VB, Green Headphone Out, Left] Playback problem with startup applications Status in alsa-driver package in Ubuntu: New Bug description: I am starting an audio application (a.g. aplay, paplay, any media player) automatically after login (through the "Startup Applications"). I can see that the app is playing some audio through PulseAudio by checking pavucontrol. However, no sound is output to the speaker. When I delay the startup of the app a couple of seconds (e.g. via sleep 5), the sound is played as expected. We tried to analyze the issue here: https://answers.launchpad.net/ubuntu/+question/703840 It seems that there is something wrong with the mixer when audio apps are launched very early after boot (or login?): The "Master Playback Volume" is set to 0 at the ALSA level, and it seems that PulseAudio is not able to raise it if audio playback is started so early. Attempts to automatically raise the "Master Playback Volume" through amixer also failed. The "Master Playback Volume" stays at 0. As mentioned above, when the start of the playback is delayed a bit, the "Master Playback Volume" is at 100 as expected. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: alsa-base 1.0.25+dfsg-0ubuntu7 ProcVersionSignature: Ubuntu 5.15.0-53.59-generic 5.15.64 Uname: Linux 5.15.0-53-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: kiosk 1081 F.... pulseaudio /dev/snd/pcmC0D0c: kiosk 1081 F...m pulseaudio /dev/snd/pcmC0D0p: kiosk 1081 F...m pulseaudio CasperMD5CheckResult: pass Date: Mon Nov 21 10:35:48 2022 InstallationDate: Installed on 2022-11-21 (0 days ago) InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Headphone Out, Left Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: None of the above Title: [NUC12WSKi5, Realtek ALC269VB, Green Headphone Out, Left] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/18/2022 dmi.bios.release: 5.26 dmi.bios.vendor: Intel Corp. dmi.bios.version: WSADL357.0085.2022.0718.1739 dmi.board.name: NUC12WSBi5 dmi.board.vendor: Intel Corporation dmi.board.version: M46425-302 dmi.chassis.type: 35 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnIntelCorp.:bvrWSADL357.0085.2022.0718.1739:bd07/18/2022:br5.26:svnIntel(R)ClientSystems:pnNUC12WSKi5:pvrM46708-302:rvnIntelCorporation:rnNUC12WSBi5:rvrM46425-302:cvnIntelCorporation:ct35:cvr2.0:skuNUC12WSKi5000: dmi.product.family: WS dmi.product.name: NUC12WSKi5 dmi.product.sku: NUC12WSKi5000 dmi.product.version: M46708-302 dmi.sys.vendor: Intel(R) Client Systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1997224/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
