Public bug reported:
After a period of time, it seems utterly random but can be provoked by
seeking forward/backward in videos (e.g. Youtube, VLC media player ...),
all audio will sound metallic and corrupted.
The quick "solution" is to restart pipewire (`systemctl --user restart
pipewire`), but this comes at the expense of my microphone no longer
working in active applications (e.g. Chrome) until I restart them.
I had experienced this bug before with mainline kernels for Ubuntu
24.04. I then put it down to those kernels not being optimised for
Ubuntu, and reverted to the official 6.8 kernel.
However, since upgrading to Ubuntu 24.10 which ships with the 6.11
kernel, the issue has returned, so I believe I can single out the kernel
as the culprit.
System:
- Meteor Lake chipset with integrated audio
Symptom:
- "Metallic" or "robotic" sound, across all applications, with no discernable
cause
Ways to reproduce:
- There may be many hours between occurrences
- It seems to occur more frequently when seeking in video
- It *seems* to occur more frequently on battery and power saving mode
ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: linux-image-6.11.0-9-generic 6.11.0-9.9
ProcVersionSignature: Ubuntu 6.11.0-9.9-generic 6.11.0
Uname: Linux 6.11.0-9-generic x86_64
ApportVersion: 2.30.0-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: sander 205946 F.... pipewire
/dev/snd/pcmC0D0p: sander 205946 F...m pipewire
/dev/snd/controlC0: sander 205946 F.... pipewire
sander 205948 F.... wireplumber
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 21 09:52:04 2024
HibernationDevice:
InstallationDate: Installed on 2024-05-29 (176 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: LENOVO 21LSCTO1WW
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
0 simpledrmdrmfb
1 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.11.0-9-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.11.0-9-generic N/A
linux-backports-modules-6.11.0-9-generic N/A
linux-firmware 20240913.gita34e7a5f-0ubuntu2.1
SourcePackage: linux
UpgradeStatus: Upgraded to oracular on 2024-11-19 (2 days ago)
dmi.bios.date: 08/07/2024
dmi.bios.release: 1.7
dmi.bios.vendor: LENOVO
dmi.bios.version: N46ET17W (1.07 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21LSCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.4
dmi.modalias:
dmi:bvnLENOVO:bvrN46ET17W(1.07):bd08/07/2024:br1.7:efr1.4:svnLENOVO:pn21LSCTO1WW:pvrThinkPadT14sGen5:rvnLENOVO:rn21LSCTO1WW:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21LS_BU_Think_FM_ThinkPadT14sGen5:
dmi.product.family: ThinkPad T14s Gen 5
dmi.product.name: 21LSCTO1WW
dmi.product.sku: LENOVO_MT_21LS_BU_Think_FM_ThinkPad T14s Gen 5
dmi.product.version: ThinkPad T14s Gen 5
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oracular wayland-session
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https://bugs.launchpad.net/bugs/2089232
Title:
audio corruption since kernel >6.8, solved temporarily by restarting
pipewire
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