Public bug reported:
After a clean install of Ubuntu 25.04, sound output works only for a
limited time, and then continuous static is heard (mixed with app's
sound).
For example, I can watch a Youtube video and everything is fine at
first; after 10 minutes to maybe an hour, the static suddenly starts and
is thereafter present whenever sound is being output.
The behavior is as if a buffer somewhere is slowly growing and when it
becomes full the static noise appears; however stopping sound output
does not empty the buffer right away, it seems to take a long time for
the problem to "cure" itself (like sitting overnight).
My speakers are in my monitor, connected via HDMI.
The hardware is old but not wimpy (6/12 core i7-8700K cpu, 16MB ram, M.2
SSD).
-----
Nothing like this occurred with 24.04 LTS. Audio worked will with the
same exact hardware. Something in 25.04 is causing this new problem.
Note: I did a clean install of 25.04 to a new root partition (did not
upgrade the OS in place). My /home partition was carried over.
ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: alsa-base 1.0.25+dfsg-0ubuntu8
ProcVersionSignature: Ubuntu 6.14.0-35.35-generic 6.14.11
Uname: Linux 6.14.0-35-generic x86_64
ApportVersion: 2.32.0-0ubuntu5.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jima 2700 F.... wireplumber
/dev/snd/controlC1: jima 2700 F.... wireplumber
/dev/snd/seq: jima 2695 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 18 08:23:44 2025
InstallationDate: Installed on 2025-10-18 (31 days ago)
InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
MachineType: System manufacturer System Product Name
PackageArchitecture: all
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: 12/01/2017
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0605
dmi.board.asset.tag: Default string
dmi.board.name: PRIME Z370-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0605:bd12/01/2017:br5.12:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEZ370-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug plucky
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https://bugs.launchpad.net/bugs/2131814
Title:
Static noise starts after after playing sound for a while
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