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SOLVED] No HDMI audio on Linux Mint 20.2 or 20.3. 10th gen Intel Nuc core i7 10710U with UHD Graphics. - Linux Mint Forums
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Digital Surround 5.1 HDMI Ouput throught an HDMI audio extractor is not working - Sound - Manjaro Linux Forum
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![audio - How to keep Linux Mint volume media keys and tray volume control working after HDMI switch - Unix & Linux Stack Exchange audio - How to keep Linux Mint volume media keys and tray volume control working after HDMI switch - Unix & Linux Stack Exchange](https://i.stack.imgur.com/ras2w.png)