No Sound

[Steven Friedrich]

On Friday, 14 September 2018 09:26:57 EDT Steven Friedrich wrote:
> I have a new HP Slimline Desktop 290-p0014 which features an Intel i7-8700.
> running
> FreeBSD Chameleon.friedrich.org 11.2-RELEASE FreeBSD 11.2-RELEASE #2: Thu
> Sep 13 12:15:36 EDT 2018    
> root at Chameleon.friedrich.org:/usr/obj/usr/src/sys/ CHAMELEON  amd64
> 
> with snd_hda devices:
> Installed devices:
> pcm0: <Realtek ALC671 (Rear Analog)> (play/rec)
> pcm1: <Realtek ALC671 (Analog)> (play/rec)
> pcm2: <Intel Kabylake (HDMI/DP 8ch)> (play) default
> No devices installed from userspace.
> I tried cdcontrol -f dev/cd0 play 1.
> 
> I am using the handbook section 7.2.2, but I have no sound.
> How can I troubleshoot this?
lf /dev shows no pcm devices, or speaker, but does show mixer0, mixer1, 
mixer2, and dsp0.0, dsp1.0, and dsp2.0, and pass0, pass1, and pass2.