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ATI RS880 HDMI Audio [Radeon HD 4200 Series] No Audio ...
https://forums.linuxmint.com/viewtopic.php?t=121244#:~:text=You%20might%20check%20pulseaudio%20and%20see%20if%20it,Ubuntu%2012.04%20might%20work%20with%20Ubuntu%2012.10%2FMint%2014.
nvidia - No HDMI sound on Ubuntu 12.04 LTS - Ask Ubuntu
https://askubuntu.com/questions/373080/no-hdmi-sound-on-ubuntu-12-04-lts
I'm very new to Ubuntu/Linux. I installed Ubuntu 12.04 LTS on my laptop (nVidia gpu) in dual boot, and, with some help from Google, I'm almost ready to go. The only thing that I can't figure out is how to play sound trough my HDMI connected to my TV. Speakers of the laptop are ok, in the sound settings I can see -hdmi -digital -speaker outputs.
[SOLVED] Ubuntu 12.04 - No sound - LMMS • Forums
https://lmms.io/forum/viewtopic.php?t=1143
It has to do with audio in that newer GPU's these days include their own audio interfaces, for HDMI audio output. Can't be letting people use DRM-free audio interfaces, after all. ... Ubuntu 12.04 - No sound. zonkmachine Online Posts: 704 Joined: Wed Jan 26, 2011 12:54 am. Sun Jan 26, 2014 6:47 pm
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/
This post was written more than two years ago when I faced similar situation with Ubuntu 12.04. But the previous time I could see HDMI option in the input audio source but in Ubuntu 15.04, HDMI audio option was not even listed in the input audio source so a switch to HDMI input was (seemingly) impossible.
no sound in ubuntu 12.04 - LinuxQuestions.org
https://www.linuxquestions.org/questions/linux-software-2/no-sound-in-ubuntu-12-04-a-943298/
I ran into a no sound issue after upgrading from 10.04 to 12.04. In my case, the problem was my Nvidia video card with an HDMI output. All the sound was being directed to the HDMI output instead of the 3.5 mm jack on my on-board sound card. To fix it, I went to Multimedia->Pulse Audio Volume Control then click on the Configuration tab,
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