No sound by default on FreeBSD-12.1-p2-amd64

[Dmitrii Postolov]

Hi, sorry for my bad English...

No sound by default on FreeBSD-12.1-p2-amd64 in mini-PCs: Intel NUC5PPYH & Intel DN2820FYKH:

Intel NUC5PPYH: Intel N3700 CPU Braswell, Realtek ALC283 HDA CODEC.
Intel NUC DN2820FYKH: Intel N2830 CPU Bay-Trail-M

On FreeBSD sound play only after sysctl tuning: sysctl dev.hdac.0.polling=1
But in this case sound plays with the artefacts (sound freeze).

On other operating systems all OK with sound play by default. Tested with: DragonFly BSD, NetBSD, OpenBSD, Linux, Windows, Haiku.
This problem is observed only in FreeBSD with all Bioses versions and all versions of FreeBSD: RELEASE and CURRENT.

Is it possible to fix this problem for FreeBSD (for sound plays OK without sysctl polling and sound freeze?)

Verbose EFI boot Intel NUC5PPYH on FreeBSD-12.1-p2-amd64:

https://yadi.sk/d/xdNqgdyh2KmTPQ

dmitrii at nuc5:~ % cat /dev/sndstat
Installed devices:
pcm0: <Realtek ALC283 (Analog)> (play/rec)
pcm1: <Realtek ALC283 (Front Analog Headphones)> (play) default
pcm2: <Realtek ALC283 (Internal Digital)> (play)
pcm3: <Intel (0x2883) (HDMI/DP 8ch)> (play)
No devices installed from userspace.

P.S. I send this e-mail to freebsd-multimedia@ some days ago, but no answers. :-(

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best regards,
Dmitrii Postolov
dpostolov at yandex.ru