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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/#:~:text=%5BSolution%5D%20Fix%20no%20Audio%20through%20HDMI%20in%20Ubuntu,not%20work%2C%20try%20changing%20the%20configuration...%20See%20More.
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.
Fixed: No Sound in Ubuntu as HDMI Enabled By Default
https://itsfoss.com/fix-sound-ubuntu-1404/
Fixing no sound in Ubuntu when HDMI is set as default. Now to force Ubuntu to use analog output instead of HDMI by default, we need a little information. Open a terminal and use the following command: aplay -l. This will list the devices, card number etc. Note down the card and device number for analog output.
Fix No Sound (Dummy Output) Issue In Ubuntu With SND HDA ...
https://www.linuxuprising.com/2018/06/fix-no-sound-dummy-output-issue-in.html
[ [Anoter edit]] The first fix you should try is to simply restart PulseAudio, using this command: pulseaudio -k This fixes the sound in many situations. E.g. if your headphones don't show up in the system sound settings. #1 Fixing the no sound issue in Ubuntu (Dummy Output) 0.
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