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RPiconfig - eLinux.org
https://elinux.org/RPiconfig#:~:text=hdmi_force_edid_audio%20Pretends%20all%20audio%20formats%20are%20supported%20by,display.%20This%20means%20ALSA%20will%20default%20to%20analogue.
kernel modules - How to force HDMI audio (intel card) to ...
https://unix.stackexchange.com/questions/391326/how-to-force-hdmi-audio-intel-card-to-be-enabled-despite-receiving-broken-edid
However, the HDMI audio doesn't work. Pulseaudio is set to the correct sink, which is detected as unplugged (not-available). I tried the following without any resulting change: Add the edid file in initramfs so that EDID is loaded earlier; xrandr --output HDMI-1 --set audio on
audio - sound output stuck on HDMI (working) - Raspberry ...
https://raspberrypi.stackexchange.com/questions/113997/sound-output-stuck-on-hdmi-working
You should try to comment out hdmi_force_edid_audio=1 in config.txt, add/uncomment hdmi_ignore_edid_audio=1 option, then reboot and try amixer again. Also you can check option hdmi_drive: hdmi_drive=1 Normal DVI mode (No sound) hdmi_drive=2 Normal HDMI mode (Sound will be sent if supported and enabled) Share Improve this answer
Balena Sound: How to force to HDMI audio? - Product ...
https://forums.balena.io/t/balena-sound-how-to-force-to-hdmi-audio/23784
So for the record, I’m using this HDMI audio splitterto feed audio via optical link to my stereo system. The audio coming from the analog 3.5mm port was weak and muddled. The digital audio is a much cleaner solution. The config.txt file now reads as follows: hdmi_drive=2 hdmi_force_edid_audio=1 hdmi_force_hotplug=1 disable_splash=1
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