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This is happening since I upgraded from kubuntu 20.04 to 20.10
Every time I reboot, I cannot find the default "line out" output in the
list of available sound output in kmixer, it has disappeared.
The only workaround is to retrieve it is launching the following script :
#!/bin/bash
killall pulseaudio
pulseaudio -k
rm -r ~/.config/pulse/*
rm -r ~/.pulse*
sleep 15
pulseaudio --start
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: pulseaudio 1:13.99.2-1ubuntu2
ProcVersionSignature: Ubuntu 5.8.0-26.27-generic 5.8.14
Uname: Linux 5.8.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Wed Oct 28 13:57:02 2020
InstallationDate: Installed on 2019-06-02 (514 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to groovy on 2020-10-24 (4 days ago)
dmi.bios.date: 03/16/2018
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.50
dmi.board.name: H270M-ITX/ac
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd03/16/2018:br5.12:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH270M-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.10
InstallationDate: Installed on 2019-06-02 (514 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
Package: pulseaudio 1:13.99.2-1ubuntu2
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.8.0-26.27-generic 5.8.14
Tags: groovy package-from-proposed
Uname: Linux 5.8.0-26-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-10-24 (4 days ago)
UserGroups: adm cdrom dialout dip kvm libvirt lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/16/2018
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.50
dmi.board.name: H270M-ITX/ac
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd03/16/2018:br5.12:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH270M-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.10
InstallationDate: Installed on 2019-06-02 (514 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
Package: pulseaudio 1:13.99.2-1ubuntu2
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Tags: groovy package-from-proposed
Uname: Linux 5.4.0-52-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-10-24 (4 days ago)
UserGroups: adm cdrom dialout dip kvm libvirt lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/16/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.50
dmi.board.name: H270M-ITX/ac
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd03/16/2018:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH270M-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug apport-collected groovy package-from-proposed
--
[ASRock H270M-ITX/ac] Line output device unavailable on KDE after reboot
https://bugs.launchpad.net/bugs/1901885
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