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Fixed: No Sound in Ubuntu as HDMI Enabled By Default
https://itsfoss.com/fix-sound-ubuntu-1404/#:~:text=Fixing%20no%20sound%20in%20Ubuntu%20when%20HDMI%20is,the%20card%20and%20device%20number%20for%20analog%20output.
No sound on HDMI Ubuntu 20.04 - Ask Ubuntu
https://askubuntu.com/questions/1256043/no-sound-on-hdmi-ubuntu-20-04
Open the audio mixer (it's called pavucontrol here) Switch to the Configuration tab (rightmost tab), There is a dropdown for selecting the profile for the builtin audio device. Here I could select a HDMI profile, just be careful to pick one that is not marked as not available. After that, audio through HDMI worked just fine.
Fix No Sound Through HDMI In External Monitor In Ubuntu ...
https://itsfoss.com/how-to-fix-no-sound-through-hdmi-in-external-monitor-in-ubuntu/
Type “sound” in Unity dash (by pressing the Super/Windows key) or from the top right corner choose the system settings and then look for sound setting. Step 2. In the sound settings, in Output tab the built-in-audio was set to Analog Stereo Duplex. Change the mode to HDMI output Stereo.
Unable to get audio through HDMI connection ... - Ask …
https://askubuntu.com/questions/512621/unable-to-get-audio-through-hdmi-connection-to-tv-with-ubuntu-14-04
If the command gives you errors on groups that don't exist, just ignore it. Install the latest ALSA drivers using the following commands: sudo add-apt-repository ppa:ubuntu-audio-dev/alsa-daily sudo apt-get update sudo apt-get install oem-audio-hda-daily-dkms. Reboot and check if audio over HDMI is working. Sources:
Ubuntu 18.04 -- No HDMI sound - Ask Ubuntu
https://askubuntu.com/questions/1177066/ubuntu-18-04-no-hdmi-sound
There should be a number of HDMI options here (for me, a lot.) Plug in your HDMI device (unplug it first if needed.) For me plugging in changed the drop down to a workable one. If this doesn't work just pick some. Go to the Output tab, see a HDMI device selected Try playing some sound Share Improve this answer answered Dec 24 '20 at 5:00 phs 309 2
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