20.04.02 introduces noise into the audio channel when using YouTube

[Robert Pearson]

My hardware:
HDMI output to TV/Monitor. Optical cable to Phonak TVLink. Bluetooth to compilot. ComPilot to hearing aids.
Browsing YouTube with Google Chrome.
Works fine with 18.04.
Tried Ubuntu MATE 20.04.02.
High level of noise with 20.04. When reboot to 18.04 noise goes away.

Not Hardware. Just bad code in 20.04.02 audio.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-142-generic 4.15.0-142.146
ProcVersionSignature: Ubuntu 4.15.0-142.146-generic 4.15.18
Uname: Linux 4.15.0-142-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: robert 6819 F.... pulseaudio
 /dev/snd/controlC0: robert 6819 F.... pulseaudio
CurrentDesktop: MATE
Date: Fri Apr 23 19:30:35 2021
InstallationDate: Installed on 2019-12-22 (488 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: System manufacturer System Product Name
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-142-generic root=UUID=ae6f5cdd-0c3b-48a9-8449-da1027511bec ro quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-142-generic N/A
 linux-backports-modules-4.15.0-142-generic N/A
 linux-firmware 1.173.20
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1301
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: A88XM-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1301:bd04/01/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnA88XM-A:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Kai-Heng Feng (kaihengfeng)]

Is it a kernel regression? Can you please try 20.04 with kernel 4.15?

[Robert Pearson (rpearsonii)]

Can you please try 20.04 with kernel 4.15?

How? I am not a Linux guru, only an expert system (both hardware and
software) designer. Apparently the kernel coders made some assumptions
about the hardware. I will continue to use 18.04 until one of the “updates”
actually works.

P.S. I only recommend Ubuntu because Microsoft and Apple are so much worse!

Robert Pearson

On Fri, May 21, 2021 at 1:40 AM Kai-Heng Feng <email address hidden>
wrote:

> Is it a kernel regression? Can you please try 20.04 with kernel 4.15?
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1925981
>
> Title:
> 20.04.02 introduces noise into the audio channel when using YouTube
>
> Status in linux package in Ubuntu:
> Incomplete
>
> Bug description:
> My hardware:
> HDMI output to TV/Monitor. Optical cable to Phonak TVLink. Bluetooth to
> compilot. ComPilot to hearing aids.
> Browsing YouTube with Google Chrome.
> Works fine with 18.04.
> Tried Ubuntu MATE 20.04.02.
> High level of noise with 20.04. When reboot to 18.04 noise goes away.
>
> Not Hardware. Just bad code in 20.04.02 audio.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: linux-image-4.15.0-142-generic 4.15.0-142.146
> ProcVersionSignature: Ubuntu 4.15.0-142.146-generic 4.15.18
> Uname: Linux 4.15.0-142-generic x86_64
> ApportVersion: 2.20.9-0ubuntu7.23
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC1: robert 6819 F.... pulseaudio
> /dev/snd/controlC0: robert 6819 F.... pulseaudio
> CurrentDesktop: MATE
> Date: Fri Apr 23 19:30:35 2021
> InstallationDate: Installed on 2019-12-22 (488 days ago)
> InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64
> (20180426)
> MachineType: System manufacturer System Product Name
> ProcFB: 0 radeondrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-142-generic
> root=UUID=ae6f5cdd-0c3b-48a9-8449-da1027511bec ro quiet splash vt.handoff=1
> RelatedPackageVersions:
> linux-restricted-modules-4.15.0-142-generic N/A
> linux-backports-modules-4.15.0-142-generic N/A
> linux-firmware 1.173.20
> RfKill:
> 0: phy0: Wireless LAN
> Soft blocked: no
> Hard blocked: no
> SourcePackage: linux
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 04/01/2014
> dmi.bios.vendor: American Megatrends Inc.
> dmi.bios.version: 1301
> dmi.board.asset.tag: To be filled by O.E.M.
> dmi.board.name: A88XM-A
> dmi.board.vendor: ASUSTeK COMPUTER INC.
> dmi.board.version: Rev X.0x
> dmi.chassis.asset.tag: Asset-1234567890
> dmi.chassis.type: 3
> dmi.chassis.vendor: Chassis Manufacture
> dmi.chassis.version: Chassis Version
> dmi.modalias:
> dmi:bvnAmericanMegatrendsInc.:bvr1301:bd04/01/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnA88XM-A:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
> dmi.product.family: To be filled by O.E.M.
...

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]