You need to enable Auto-Mute mode in alsamixer if you want speakers to mute on plug. Also, make sure Headphone is unmuted (Press 'm' and make sure it does not say "MM")
Simple mixer control 'Headphone',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 87 Mono: Front Left: Playback 56 [64%] [-23.25dB] [off] Front Right: Playback 56 [64%] [-23.25dB] [off] Simple mixer control 'Auto-Mute Mode',0 Capabilities: enum Items: 'Disabled' 'Enabled' Item0: 'Disabled' ** Summary changed: - Wired headphones not detected; audio stays on speakers after plug-in. + [HP 250 15.6 inch G9, Realtek ALC236] Wired headphones not detected; audio stays on speakers after plug-in. ** Description changed: Wired headphones are not detected on my HP laptop. When headphones are plugged into the audio jack, Ubuntu does not switch output and no headphone device appears; sound continues playing through the internal speakers. - If they allow one extra line, add this: - Audio uses Intel Alder Lake sof-hda-dsp with Realtek ALC236 on PipeWire. - - That’s it. Clean, factual, zero drama—the kind of report kernel and - audio devs actually read. ProblemType: Bug DistroRelease: Ubuntu 25.10 Package: alsa-base 1.0.25+dfsg-0ubuntu8 ProcVersionSignature: Ubuntu 6.17.0-8.8-generic 6.17.2 Uname: Linux 6.17.0-8-generic x86_64 ApportVersion: 2.33.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Dec 15 14:32:40 2025 InstallationDate: Installed on 2025-12-13 (2 days ago) InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Release amd64 (20251007) MachineType: HP HP 250 15.6 inch G9 Notebook PC PackageArchitecture: all ProcEnviron: - LANG=en_US.UTF-8 - PATH=(custom, no user) - SHELL=/bin/bash - TERM=xterm-256color - XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + PATH=(custom, no user) + SHELL=/bin/bash + TERM=xterm-256color + XDG_RUNTIME_DIR=<set> PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. SourcePackage: alsa-driver Symptom: audio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/16/2025 dmi.bios.release: 15.69 dmi.bios.vendor: Insyde dmi.bios.version: F.69 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 89A0 dmi.board.vendor: HP dmi.board.version: 08.44 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 8.44 dmi.modalias: dmi:bvnInsyde:bvrF.69:bd04/16/2025:br15.69:efr8.44:svnHP:pnHP25015.6inchG9NotebookPC:pvrType1ProductConfigId:rvnHP:rn89A0:rvr08.44:cvnHP:ct10:cvrChassisVersion:sku6S7Q3EA#ABF: dmi.product.family: 103C_5336AN HP 200 dmi.product.name: HP 250 15.6 inch G9 Notebook PC dmi.product.sku: 6S7Q3EA#ABF dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2136131 Title: [HP 250 15.6 inch G9, Realtek ALC236] Wired headphones not detected; audio stays on speakers after plug-in. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2136131/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
