Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-oem (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1821663
Title:
[regression][snd_hda_codec_realtek] repeating crackling noise after
19.04 upgrade
Status in linux package in Ubuntu:
Fix Committed
Status in linux-oem package in Ubuntu:
Confirmed
Status in linux source package in Bionic:
Fix Committed
Status in linux-oem source package in Bionic:
Fix Committed
Status in linux source package in Cosmic:
Fix Committed
Status in linux source package in Disco:
Fix Committed
Bug description:
[Impact]
After CONFIG_SND_HDA_POWER_SAVE_DEFAULT is changed to 1, the codec runtime PM
is
enabled, on some codecs or for some hw design, there is noise with the codec
runtime PM enabled.
[Fix]
put the machine in the power_save_black_list, this will set the power_save=0
[Test Case]
just boot up and do some audio operations, there is no noise anymore
[Regression Risk]
Low. this patch ony applies to the specific machines.
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:
USER PID 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=<set>
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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