Public bug reported:
on a fresh Ubuntu 20.04 x64 install, I've noticed some troubling bugs
with pulseaudio after putting my system to sleep and then waking it up.
these bugs aren't present on a fresh boot, only after resuming from
sleep:
- it forgets which sound output device it's set to, and always reverse to the
motherboard's S/PDIF output.
- I have two devices connected to my video card, one is a displayport monitor,
and one is a home theater receiver via HDMI. it confuses the two, and randomly
switches which device it thinks is capable of surround sound.
- it sometimes refuses to switch to the correct audio device, and just resets
any choice back to the internal S/PDIF, until the system is rebooted.
as you can imagine, this a pretty frustrating state of affairs.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: pulseaudio 1:13.99.1-1ubuntu3.4
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: tessa 3387 F.... pulseaudio
/dev/snd/pcmC1D7p: tessa 3387 F...m pulseaudio
/dev/snd/controlC2: tessa 3387 F.... pulseaudio
/dev/snd/controlC0: tessa 3387 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 22 18:38:42 2020
InstallationDate: Installed on 2020-07-15 (7 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3503
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: GRYPHON Z97
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
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.:bvr3503:bd04/18/2018:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnGRYPHONZ97:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: ASUS MB
dmi.product.name: All Series
dmi.product.sku: All
dmi.product.version: System Version
dmi.sys.vendor: ASUS
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1888598
Title:
pulseaudio has is buggy with hdmi audio and sleep/wake
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