Public bug reported:
After upgrading Ubuntu 18.10 from kernel 4.18.0-20-generic to
4.18.0-21-generic, HDMI Audio stopped working, system does not detect it
at all as a sound output device. Downgrading to 4.18.0-20 helped on
Ubuntu 18.10, but currently I'm using Ubuntu 19.04 with kernel
5.0.0-29-generic, and HDMI sound still does not work and system cannot
detect it.
Adding the following parameters to GRUB didn't helped ():
- amdgpu.dc=1
- radeon.audio=1
Video card: Radeon HD 4850 with 2 DVI ports with ability to output sound
thru DVI (DVI-HDMI cable or DVI-HDMI adapter).
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-5.0.0-29-generic 5.0.0-29.31
ProcVersionSignature: Ubuntu 5.0.0-29.31-generic 5.0.21
Uname: Linux 5.0.0-29-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: oshmyrko 2595 F.... pulseaudio
/dev/snd/controlC2: oshmyrko 2595 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Sep 27 22:14:27 2019
InstallationDate: Installed on 2019-04-13 (166 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
MachineType: To be filled by O.E.M. To be filled by O.E.M.
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=uk_UA.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-29-generic
root=UUID=a88b1763-5d14-4204-ba95-d6718c22158d ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-5.0.0-29-generic N/A
linux-backports-modules-5.0.0-29-generic N/A
linux-firmware 1.178.3
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to disco on 2019-07-09 (80 days ago)
dmi.bios.date: 02/12/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2603
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: M5A97 EVO R2.0
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.:bvr2603:bd02/12/2015:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97EVOR2.0:rvrRev1.xx: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: SKU
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 disco
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https://bugs.launchpad.net/bugs/1845704
Title:
HDMI monitor is not detected as sound output device starting from
kernel 4.18.0-21 and above, Ubuntu 18.10 and 19.04
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