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sound - Ubuntu 18-04 - no HDMI audio with AMD Radeon …
https://askubuntu.com/questions/1032811/ubuntu-18-04-no-hdmi-audio-with-amd-radeon-hd-7870
You may need to add kernel parameters to /etc/default/grub. sudo nano /etc/default/grub. Look for GRUB_CMDLINE_LINUX_DEFAULT and add amdgpu.dc=1 (or, if it doesn't work, radeon.audio=1 ). Then update grub and reboot: sudo update-grub. Then look at the last tab in pavucontrol for a profile that includes HDMI output.
RadeonDriver - Community Help Wiki - Ubuntu
https://help.ubuntu.com/community/RadeonDriver
Ubuntu 14.04 and newer: HDMI audio should work automatically. Ubuntu 12.04: users have to enable HDMI audio manually by passing the radeon.audio=1 kernel parameter. It can be done with the following command: echo "options radeon audio=1" | sudo tee /etc/modprobe.d/radeon.conf. Ubuntu Precise/12.04 users should also note that they may need …
AMD Radeon Ubuntu 20.04 Driver Installation - Linux ...
https://linuxconfig.org/amd-radeon-ubuntu-20-04-driver-installation
AMD graphic cards are well supported on Ubuntu 20.04 Focal Fossa. The default open source AMD Radeon Driver is installed and enabled by default out of the box. However, since the Ubuntu 20.04 is a long term support (LTS) release the AMD Radeon graphic card users have few AMD Radeon driver installation options to their disposal.
Radeon™ RX 480 Previous Drivers | AMD
https://www.amd.com/en/support/previous-drivers/graphics/radeon-400-series/radeon-rx-400-series/radeon-rx-480
Enhanced Audio Controls: Radeon Software Crimson ReLive Edition now has support for customizable microphone volume controls, audio boost for captured replays and push to talk (mouse + keyboard) support for microphone. Radeon Chill 2. …
[ubuntu] [SOLVED] Sound using HDMI and pulseaudio on …
https://ubuntuforums.org/archive/index.php/t-1009407.html
When the main Ubuntu Repos catch up to this version you can removed them and stay with the normal packages. What this gives you: * Forget all the information you have read above this new version of pulseaudio now detects my card (ATI Radeon HD 2600HD aka ATI Technologies Inc RV630/M76 audio device [Radeon HD 2600 Series) automatically.
Disabled HDMI output? - Support & Help Requests - Ubuntu ...
https://ubuntu-mate.community/t/disabled-hdmi-output/16285
The HDMI doesn’t appear in the Output tab, probably because it’s disabled in Hardware. I only have the integrated chipset there. I’ve tried to add radeon.audio=1 to the GRUB options as I saw on other forums but it doesn’t change anything. As the messages were quite old, I assume this was supposed to fix the device not appearing at all ...
No sound via HDMI on Ubuntu 21.04 : linux4noobs
https://www.reddit.com/r/linux4noobs/comments/ovv9f0/no_sound_via_hdmi_on_ubuntu_2104/
In Ubuntu Software as well I see no drivers for my video card. lspci Displays two audio devices: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590] Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller. In Settings > Sound > Output Device, there's only S/PDIF - Family 17h.
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