Help with setting output to HDMI

[Herbaldew]

Hi,

I have followed three different guides on installing Shairport-sync and have had the same results with each. The audio outputs on the headphone jack of my Raspberry Pi 4b, though rather faintly, but I cannot figure out how to make it output on HDMI.

Edit: for clarification, other audio on the RPi does output to the HDMI port.

Here is output from sps-alsa-explore:
`pi@raspberrypi:~/sps-alsa-explore $ ./sps-alsa-explore

Device Full Name: "hw:Headphones"
Short Name: "hw:0"
This device seems suitable for use with Shairport Sync.
Possible mixers: "Headphone",0 Range: 106.38 dB
The following rate and format would be chosen by Shairport Sync in "auto" mode:
Rate Format
44100 S16_LE

Device Full Name: "hw:vc4hdmi0"
Short Name: "hw:1"
Shairport Sync can not use this device.

Device Full Name: "hw:vc4hdmi1"
Short Name: "hw:2"
This device can not be accessed and so can not be checked.
(Does it need to be configured or connected?)`

The line about "hw:vc4hdmi0" :Shairport Sync can not use this device." jumps out at me, but I have no idea what or if anything can be done about it.

Any advice?

Thanks

[Herbaldew]

This was fixed simply by commenting out "dtparam=audio=on" in config.txt.

In my case, all the steps listed in "INSTALL.md" are not necessary. Just comment out the line above from config.txt and do an apt install of "shairport-sync" and all is good.

Thanks