Daniel,
your idea was right.
1) Using the kernel 4.18 the noise disappeared
2) crackling was from the headphones
3) Over-Amplification is (and was) disabled
A-
March 26, 2019 4:01 AM, "Daniel van Vugt" wrote:
> Thanks for the bug report. Since pulseaudio is unchanged (the same
> version) in 19.04 from 18.10 I think we can exclude that as a possible
> cause.
>
> 1. The first idea I have about possible causes is a kernel change (and
> the kernel has changed a lot). Please try some older kernels from here:
>
> https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D
>
> (for reference, Ubuntu 18.10 uses kernel 4.18).
>
> 2. Also, is the crackling from internal speakers or headphones?
>
> 3. Finally, please check that something hasn't accidentally enabled:
>
> Settings > Sound > Over-Amplification
>
> as that could cause crackling.
>
> ** Package changed: pulseaudio (Ubuntu) => linux (Ubuntu)
>
> ** Changed in: linux (Ubuntu)
> Status: New => Incomplete
>
> ** Summary changed:
>
> - repeating crackling noise after 19.04 upgrade
> + [snd_hda_codec_realtek] repeating crackling noise after 19.04 upgrade
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1821663
>
> Title:
> [snd_hda_codec_realtek] repeating crackling noise after 19.04 upgrade
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821663/+subscriptions
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https://bugs.launchpad.net/bugs/1821663
Title:
[snd_hda_codec_realtek] repeating crackling noise after 19.04 upgrade
Status in linux package in Ubuntu:
Incomplete
Bug description:
I'm experiencing a repeating crackling noise after 19.04 upgrade that
start just after the boot and before the login.
I tried a bunch of fixes for pulseaudio I found googling, including this one
https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Glitches.2C_skips_or_crackling
and this one
https://askubuntu.com/questions/864608/audio-crackle-through-headphones.
Neither of which helped.
The command "killall pulseaudio" usually stop the noise for 10
seconds, then the noise restart.
The system was running smoothly on 18.10
Alessandro-
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: pulseaudio 1:12.2-2ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
Uname: Linux 5.0.0-8-generic x86_64
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: alessandro 3310 F pulseaudio
/dev/snd/controlC0: alessandro 3310 F pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 26 03:29:00 2019
InstallationDate: Installed on 2016-07-09 (989 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=
LANG=it_IT.UTF-8
SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to disco on 2019-03-25 (0 days ago)
dmi.bios.date: 02/14/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: GA-8TRC410M-NF
dmi.board.vendor: NEC COMPUTERS INTERNATIONAL
dmi.chassis.type: 3
dmi.chassis.vendor: NEC COMPUTERS INTERNATIONAL
dmi.modalias:
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd02/14/2006:svnPackardBellNEC:pnIMEDIA5204:pvrPB34310106:rvnNECCOMPUTERSINTERNATIONAL:rnGA-8TRC410M-NF:rvr:cvnNECCOMPUTERSINTERNATIONAL:ct3:cvr:
dmi.product.name: IMEDIA 5204
dmi.product.version: PB34310106
dmi.sys.vendor: Packard Bell NEC
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