I’m running Zorin Lite 15.3 on an old HP Pavilion, which has SVGA and HDMI output. When I connect to a projector via HDMI, the image output works, but not sound. There’s no HDMI option in the sound menu, even when connected. I’ve tried with two different projectors, with the same result.
I tried the solution offered here but when I try to install Pulse Audio Manager, I get "Package ‘paman’ had no installation candidate’.
The latest versions of ALSA, Pulseaudio and pavucontrol are already installed.