[Bug 285156] No HDMI audio on AlderLake N100

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 15 Mar 2025 00:09:23 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285156

--- Comment #2 from GB <gireeshb@gmail.com> ---
Below is output of 'dmesg | grep hdac' with booting in verbose mode

hdac0: <Intel Alder Lake-N HDA Controller> mem
0x6001110000-0x6001113fff,0x6001000000-0x60010fff
ff irq 16 at device 31.3 on pci0
hdac0: PCI card vendor: 0x8086, device: 0x7270
hdac0: HDA Driver Revision: 20120126_0002
hdac0: Config options: on=0x00000000 off=0x00000000
hdac0: Caps: OSS 9, ISS 7, BSS 0, NSDO 1, 64bit, CORB 256, RIRB 256
hdac0: attempting to allocate 1 MSI vectors (1 supported)
hdac0: using IRQ 135 for MSI
hdacc0: <Realtek ALC897 HDA CODEC> at cad 0 on hdac0
hdaa0: <Realtek ALC897 Audio Function Group> at nid 1 on hdacc0

Another point of note:
I had to do the following to get it working in Arch Linux on the same
box....however not sure how to get wireplumber etc. setup and running in
FreeBSD

 $ pw-cli list-objects Device
id 41, type PipeWire:Interface:Device/3
object.serial = "41"
factory.id = "14"
client.id = "34"
device.api = "alsa"
device.description = "Built-in Audio"
device.name = "alsa_card.pci-0000_00_1f.3"
device.nick = "HDA Intel PCH"
media.class = "Audio/Device"

$ wpctl set-profile 41 3

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