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Fix No Sound (Dummy Output) Issue In Ubuntu With SND HDA Inte…
https://www.linuxuprising.com/2018/06/fix-no-sound-dummy-output-issue-in.html#:~:text=In%20case%20you%27ve%20plugged%20in%20an%20HDMI%20cable%2C,then%20you%20can%20unplug%20the%20HDMI%20cable%20again.
No sound on HDMI Ubuntu 20.04 - Ask Ubuntu
https://askubuntu.com/questions/1256043/no-sound-on-hdmi-ubuntu-20-04
After upgrading from Ubuntu 18.04 to 20.04, I noticed that pulseaudio would no longer detect HDMI audio output (plugged to an nVidia graphics card) when turning my TV on after I logged in. HDMI output is just not listed anymore in sound settings.
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/
Fix no audio through HDMI in Ubuntu Solution 1: Change default sound setting. I saw a number of forum posts with trouble on the audio problem in extended monitor in Ubuntu. Thankfully this problem was not complex, at least in this case with Ubuntu 12.04. The reason in my case was that the default sound setting was “built-in speaker audio”.
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.
[ubuntu] No HDMI sound, other sound is Okay Ubuntu 21.10
https://ubuntuforums.org/showthread.php?t=2471720
No HDMI sound, other sound is Okay Ubuntu 21.10. HDMI shows up on the list of audio outputs, but when I choose it, the sound doesn't work at all. I checked to make sure nothing was muted and sound was turned up to 100%. ASUS Prime Z590-p WIFI. CPU Intel Core i9-11900K.
No HDMI audio on Ubuntu | NVIDIA GeForce Forums
https://www.nvidia.com/en-us/geforce/forums/game-ready-drivers/13/234077/no-hdmi-audio-on-ubuntu/
But in Linux it doesn't gives any audio output. Here is some info from Ubuntu. Tested all audio device manually ,but nothing gives any oudio output. 1 sink(s) available. As you can see "hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)" It's not available. My system details.
no audio via HDMI connection - Ubuntu Forums
https://ubuntuforums.org/showthread.php?t=2441589
Hello. I'm running lubuntu 18 via an intel compute stick (althought I tried this on Ubuntu 18 via HDMI and the same issue persists). I have no audio from the HDMI. Video of course works fine. When I run pavucontrol via the command line and check output and configuration tabs there is no option for HDMI. When I run VLC there is no option for anything …
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
Update for no sound after unplugging HDMI cable. In case you've plugged in an HDMI cable, then unplugged it and you're no longer getting any sound on your Ubuntu desktop, the solution is quite simple. Plug in the HDMI device back and you should be able to switch back to the integrated / external speakers, then you can unplug the HDMI cable again.
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