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REALLY force Raspberry Pi to send audio via HDMI ...
https://raspberrypi.stackexchange.com/questions/13386/really-force-raspberry-pi-to-send-audio-via-hdmi
I was checking all the hdmi_drive=2, hdmi_force_hotplug=1, hdmi_ignore_edid, etc. options in /boot/config.txt. Which didn't help, because the Raspberry Pi did not understand that it should send audio, although the final video signal sink was a "dumb" DVI display. audio hdmi output config.txt. Share.
How to force audio from jack 3.5 modifying config.txt ...
https://forums.raspberrypi.com/viewtopic.php?t=215339
Code: Select all. hdmi_ignore_edid_audio=1. From the command line, https://www.raspberrypi.org/documentati ... -config.md : The following command, entered in the command line, will switch the audio output to HDMI: amixer cset numid=3 2.
Raspberry Pi Documentation - The config.txt file
https://www.raspberrypi.com/documentation/computers/config_txt.html
hdmi_edid_file=1 hdmi_edid_filename:0=FileForPortZero.edid hdmi_edid_filename:1=FileForPortOne.edid hdmi_force_edid_audio Setting hdmi_force_edid_audio to 1 pretends that all audio formats are supported by the display, allowing passthrough of DTS/AC3 even when this is not reported as supported.
Raspberry Pi Documentation - Configuration
https://www.raspberrypi.com/documentation/configuration/config-txt/video.md
The Raspberry Pi Zero uses a mini HDMI port, so you will need a mini-HDMI-to-full-size-HDMI lead or adapter. On the Raspberry Pi 4 there are two micro HDMI ports, so you will need either one or two micro-HDMI-to-full-size-HDMI leads or adapters, depending on how many displays you …
config.txt (Raspberry Pi) in Documentation
https://www.riscosopen.org/wiki/documentation/show/config.txt%20(Raspberry%20Pi)
hdmi_force_edid_audio=1 Send audio via HDMI, ignoring any “audio not supported” indications from the monitor. The following two entries are useful if you want to use the 3.5mm audio output jack instead of via the HDMI cable. hdmi_ignore_edid_audio=1 Force the audio to use the stereo audio jack output.
RPi Configuration - eLinux.org
https://elinux.org/RPi_Configuration
hdmi_ignore_edid=0xa5000080 hdmi_force_edid_audio Pretends all audio formats are supported by display, allowing passthrough of DTS/AC3 even when not reported as supported. hdmi_force_edid_audio=1 hdmi_ignore_cec Pretends CEC is not supported by TV. Avoids bringing (CEC enabled) TV out of standby and channel switch when rebooting.
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