Hi Philip, thank you for helping me! 1) The headphones are plugged into the computer's headphone out jack; I couldn't find a headphone jack on the monitor.
2) The upgrade from the 6.5-based kernel to the 6.8 kernel was done automatically by /usr/bin/unattended-upgrade, as shown in the apt logs. 3) If I plug in the headphones later, the message shown in the attached screenshot appears and then it's fine. 4) I did it for both, file are renamed 68-... for 6.8 kernel and 65-... for 6.5 kernel. I noticed that the message in the screenshot only appears when using the 6.8 kernel; it never happens when plugging back in with the 6.5 kernel. ** Attachment added: "Screenshot from 2024-08-20 12-21-28.png" https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.8/+bug/2077221/+attachment/5807329/+files/Screenshot%20from%202024-08-20%2012-21-28.png -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-6.8 in Ubuntu. https://bugs.launchpad.net/bugs/2077221 Title: Audio in headphone is very low and distorted at startup. Status in linux-hwe-6.8 package in Ubuntu: New Bug description: Ubuntu 22.04.4 LTS The audio in my headphones is very low and distorted at startup. When I unplug and plug them back into the jack, the sound returns to normal. I'm using an external HDMI monitor, and initially, I thought it was a default issue with PulseAudio, but that doesn't seem to be the case. EDIT: I downgraded from kernel 6.8.0-40-generic to 6.5.0-45-generic, and this solved the issue. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: alsa-base 1.0.25+dfsg-0ubuntu7 ProcVersionSignature: Ubuntu 6.8.0-40.40~22.04.3-generic 6.8.12 Uname: Linux 6.8.0-40-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lorenzo 1538 F.... pulseaudio /dev/snd/controlC1: lorenzo 1538 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat Aug 17 10:47:54 2024 InstallationDate: Installed on 2023-07-26 (387 days ago) InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64 (20230223) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Generic_1 successful Symptom_Card: Family 17h (Models 10h-1fh) HD Audio Controller - HD-Audio Generic Symptom_Jack: Black Headphone Out, Front Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: None of the above Title: [Aspire A515-45, Realtek ALC256, Black Headphone Out, Front] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2021 dmi.bios.release: 1.10 dmi.bios.vendor: INSYDE Corp. dmi.bios.version: V1.10 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Calla_LC dmi.board.vendor: LN dmi.board.version: V1.10 dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 1.4 dmi.modalias: dmi:bvnINSYDECorp.:bvrV1.10:bd12/09/2021:br1.10:efr1.4:svnAcer:pnAspireA515-45:pvrV1.10:rvnLN:rnCalla_LC:rvrV1.10:cvnChassisManufacturer:ct10:cvrChassisVersion:sku0000000000000000: dmi.product.family: Aspire 5 dmi.product.name: Aspire A515-45 dmi.product.sku: 0000000000000000 dmi.product.version: V1.10 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.8/+bug/2077221/+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
