Thanks Uriel Tunn, but that fix didn't work for me. So, I followed your advice and tried an upgrande to another distro. I tried... -> Linux Mint 20.2 Uma (Kernel 5.11) -> MX Linux 19.4.1 -> Manjaro xfce 21.0.7-210614 (Kernel 5.10) -> Endeavour-2021.04.17 (Kernel 5.11) -> Pop_OS_21.04_amd64 -> Fedora_Workstation_Live_x86_64_34-1.2 -> Ubuntu 21.04 desktop amd64 (Kernel 5.11) -> Ubuntu 18.04 desktop amd64 (Kernel 5.4.0-42-generic)
None of the above work with a DVI/HDMI or Display Port/HDMI adapter. HOWEVER, seeing as i had just installed Ubuntu 18.04, I started to install some kernels on that build Sure as hell.... 4.15.0-041500-generic - work perfectly, DVI/HDMI or Display Port/HDMI adapter listed as an options in Sound Settings 4.18.0-041800-generic - work perfectly, DVI/HDMI or Display Port/HDMI adapter listed as an options in Sound Settings 4.18.10-041810-generic - work perfectly, DVI/HDMI or Display Port/HDMI adapter listed as an options in Sound Settings 4.18.16-041816-generic - work perfectly, DVI/HDMI or Display Port/HDMI adapter listed as an options in Sound Settings 4.18.19-041819-generic - work perfectly, DVI/HDMI or Display Port/HDMI adapter listed as an options in Sound Settings THEN 4.18.20-041820-generic - would not even boot with Ubuntu - had to use the recovery kernel option, and when i got into the main screen, i checked the sound settings, and sure as hell neither DVI/HMDI nor Display Port/HDMI were listed anymore! Next I checked 4.19.0-041900-generic - while this didn't give any problems booting, when i got into the main screen, i checked the sound settings, neither DVI/HMDI nor Display Port/HDMI were listed anymore. So, yes, whatever happened in 4.18.20-041820 has broke the sound for my HDMI adapters and never been fixed since. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834771/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
