No sound via monitor - Fedora 38

Issue

A fresh install of the Fedora 38 KDE spin left me without sound via my built-in docking station in my monitor.

How-to

Run below command to see the available sinks. Then scroll through the output until you find something relevant.

pactl list sinks |less

In my case I found a port with the name of my monitor under the “Ports” section on one of my audio devices. From the last line there I got the needed profile name, output:hdmi-stereo.

Ports:
    hdmi-output-0: HDMI / DisplayPort (type: HDMI, priority: 5900, latency offset: 0 usec, availability group: Legacy 4, available)
    Properties:
    port.type = "hdmi"
    port.availability-group = "Legacy 4"
    device.icon_name = "video-display"
    card.profile.port = "5"
    device.product.name = "LEN T32h-20"
    Part of profile(s): output:hdmi-stereo, output:hdmi-stereo+input:analog-stereo

Now scroll back up and find the name of that sink.

Sink #530
    State: RUNNING
    Name: alsa_output.pci-0000_00_1f.3.hdmi-stereo

Great! All that remains is to make that profile the default for that specific card. Do that by issuing the following command:

pactl set-card-profile alsa_card.pci-0000_00_1f.3 output:hdmi-stereo