Intel 82801G High Definition Audio Controller without audio?

If your sound device is:


cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 32bit 2009061500/i386)
Installed devices:
pcm0: at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/1r:1v channels duplex default)
pcm1:
at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/0r:0v channels simplex)
pcm2:
at cad 0 nid 1 on hdac0 kld snd_hda [MPSAFE] (1p:1v/0r:0v channels simplex)

Add the lines in /boot/loader.conf


sound_load="YES"
snd_hda_load="YES"
hw.snd.default_unit=1

hw.snd.default_unit=1 can be loaded from sysctl:


sysctl hw.snd.default_unit=1