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Fixed: No Sound in Ubuntu as HDMI Enabled By Default
https://itsfoss.com/fix-sound-ubuntu-1404/
As you can see, HDMI is set by default in alsamixer. Which means by default HDMI output has been selected instead of the built in speakers. This is why I get no sound from the built in speakers in my system. Use the following …
No sound on HDMI Ubuntu 20.04 - Ask Ubuntu
https://askubuntu.com/questions/1256043/no-sound-on-hdmi-ubuntu-20-04
HDMI sound not working after upgrading to 20.04. Ubuntu 18.04: Audio doesn't work unless I switch between outputs. does not detect my sound …
Audio/Alsamixer - Ubuntu Wiki
https://wiki.ubuntu.com/Audio/Alsamixer
Enter "alsamixer" and press the Enter key. You will now see a user interface. In this user interface, you can do the following: Select your correct sound card using F6 and select F5 to see recording controls as well. Move around with left and right arrow keys. Increase and decrease volume with up and down arrow keys.
sound - Ubuntu refuses to output audio via HDMI - Ask …
https://askubuntu.com/questions/112512/ubuntu-refuses-to-output-audio-via-hdmi
Show activity on this post. With the HDMI cable plugged in, run the following utility: speaker-test --channels 2 --rate 48000 --device hw:0,3. (for others, the hw:x,y is x = card, y = device) This just runs a sound test with static bouncing back and forth. Once it has played out of each speaker, hit Ctrl+c to stop it, and then check in your ...
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