[Bug 285156] No HDMI audio on AlderLake N100

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 02 Jan 2026 06:08:59 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285156

Jonathan Chen <jonc@chen.org.nz> changed:

           What    |Removed                     |Added
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                 CC|                            |jonc@chen.org.nz

--- Comment #3 from Jonathan Chen <jonc@chen.org.nz> ---
I think I have the same issue with snd_hda on my Intel N150 mini-PC:

~,7:05pm> pciconf -lv | grep -B4 HDA
hdac0@pci0:0:31:3:      class=0x040300 rev=0x00 hdr=0x00 vendor=0x8086
device=0x54c8 subvendor=0x8086 subdevice=0x7270
    vendor     = 'Intel Corporation'
    device     = 'Alder Lake-N PCH High Definition Audio Controller'
    class      = multimedia
    subclass   = HDA
~,7:05pm> dmesg | grep hdac
hdac0: <Intel Alder Lake-N HDA Controller> mem
0x6001110000-0x6001113fff,0x6001000000-0x60010fffff 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 131 for MSI

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