Ubuntu Mate 17.04] No HDMI audio device with Intel HD GPU on ThinkPad X220 - Hardware - Ubuntu MATE Community
Adjust the sound volume in Ubuntu 20.04 using a simple utility. ┃ Securitron Linux blog.
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Amazon.com: WAVLINK USB 3.0 and USB C Universal Laptop Docking Station Dual Monitor with HDMI & HDMI/DVI/VGA with Gigabit Ethernet, 6 USB Ports, Audio for Windows, MacOS, ChromeOS, Ubuntu 20.04,22.04 : Electronics
Fix No Sound Through HDMI In External Monitor In Ubuntu Linux
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Ubuntu Forums
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Fix No Sound Through HDMI In External Monitor In Ubuntu Linux
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pulseaudio - HDMI sound not working after upgrading to 20.04 - Ask Ubuntu