This is the thread about this bug from the alsa maillist:
https://mailman.alsa-project.org/pipermail/alsa-
devel/2019-November/158336.html
And this issue will be fixed if radeon, nouveau and amdgpu drivers
support audio component. Now the amdgpu driver already supported audio
component from kernel-5.4, so if your machine is driven by amdgpu driver
(graphic card driver), you could test 5.4 kernel or ubuntu focal kernel
(the kernel for 20.04). Please check amdgpu driver is in-tree driver
instead of amdgpu-pro driver (proprietary driver).
For unload/reload the HD-audio driver mentioned that thread, I thought it
should be (but it failed when I ran alsa unload/force-unload)
localhost:~$ alsa --help
Usage: /sbin/alsa {unload|reload|force-unload|force-reload|suspend|resume}
If someone has any idea or any log, please reply to the thread alsa-
devel/2019-November/158336.html
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https://bugs.launchpad.net/bugs/1834771
Title:
No HDMI-audio after kernel 4.15.-0.50
Status in linux package in Ubuntu:
Confirmed
Bug description:
I've got no HDMI-audio. Latest kernel with working HDMI-audio is 4.15.-0.50.
In pavucontrol HDMI-audio shows unplugged. And also internal audio shows
unplugged, but it still works. I'm on linux mint 18.3.
---
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jouni 1859 F.... pulseaudio
/dev/snd/controlC1: jouni 1859 F.... pulseaudio
CurrentDesktop: X-Cinnamon
DistroRelease: Linux 18.3
HibernationDevice: RESUME=UUID=9e8d7bf3-dc5f-4c72-b875-6dbe81a36c36
InstallationDate: Installed on 2017-01-28 (883 days ago)
InstallationMedia: Linux Mint 18.1 "Serena" - Release amd64 20161213
IwConfig:
lo no wireless extensions.
enp3s0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-54-generic
root=UUID=f167a2b0-3b30-4a5a-907f-6b97c95b7a91 ro quiet iommu=soft splash
vt.handoff=7
ProcVersionSignature: Ubuntu 4.15.0-54.58~16.04.1-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-54-generic N/A
linux-backports-modules-4.15.0-54-generic N/A
linux-firmware 1.157.21
RfKill:
Tags: sylvia
Uname: Linux 4.15.0-54-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo video
_MarkForUpload: True
dmi.bios.date: 02/26/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: FC
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: 970A-UD3P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrFC:bd02/26/2016:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rn970A-UD3P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.: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.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
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