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Date: Tue, 1 May 2018 13:14:19 +0200 (CEST)
From: Wojciech Puchar <wojtek@puchar.net>
To: Adam <amvandemore@gmail.com>
cc: Wojciech Puchar <wojtek@puchar.net>,
 FreeBSD Hackers <freebsd-hackers@freebsd.org>
Subject: Re: new laptop, no sound in spite of driver attaching
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> Here is mine:
> hdacc0: <Realtek ALC1220 HDA CODEC> at cad 0 on hdac0
> hdaa0: <Realtek ALC1220 Audio Function Group> at nid 1 on hdacc0
> pcm0: <Realtek ALC1220 (Internal Analog)> at nid 20 and 18 on hdaa0
> pcm1: <Realtek ALC1220 (Left Analog)> at nid 27 and 25 on hdaa0
> pcm2: <Realtek ALC1220 (Left Digital)> at nid 30 on hdaa0
> 
> For me, I have to tickle the following sysctl's to get expected sound.
> 
> hw.snd.vpc_0db
> hw.snd.vpc_reset
> hw.snd.vpc_autoreset
>
i tried this without results
i think it is different problem.

kernel: pcm0: chn_write(): pcm0:virtual:dsp0.vp0: play interrupt timeout, channel dead