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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1834771 Title: No HDMI-audio after kernel 4.15.-0.50 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834771/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs