Public bug reported:
See https://askubuntu.com/questions/1226230/display-port-audio-pass-
through-issue
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.3.0-51.44-generic 5.3.18
Uname: Linux 5.3.0-51-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alex 1483 F.... pulseaudio
/dev/snd/controlC1: alex 1483 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat May 2 11:08:04 2020
InstallationDate: Installed on 2020-03-22 (40 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Hawaii HDMI Audio [Radeon R9 290/290X / 390/390X] - HDA ATI HDMI
Symptom_Jack: Digital Out, HDMI
Symptom_Type: Sound works for a while, then breaks
Title: [System Product Name, ATI R6xx HDMI, Digital Out, HDMI] fails after a
while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/03/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0404
dmi.board.asset.tag: Default string
dmi.board.name: Z170-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0404:bd07/03/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ170-A:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug audio eoan
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https://bugs.launchpad.net/bugs/1876473
Title:
Displayport Audio Only Works Occasionally
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