Date: Wed, 4 Jan 2012 18:40:41 -0600 From: "Conrad J. Sabatier" <conrads@cox.net> To: "Julian H. Stacey" <jhs@berklix.com> Cc: freebsd-multimedia@freebsd.org Subject: Re: Sound intermittently stops working Message-ID: <20120104184041.0b964a41@cox.net> In-Reply-To: <201201042221.q04MLqEa018426@fire.js.berklix.net> References: <20120103185538.49140809@cox.net> <201201042221.q04MLqEa018426@fire.js.berklix.net>
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On Wed, 04 Jan 2012 23:21:52 +0100 "Julian H. Stacey" <jhs@berklix.com> wrote: > "Conrad J. Sabatier" wrote: > > Anyone have any clues as to what might cause sound to suddenly stop > > working? Every so often, for no apparent reason, my audio output > > just stops abruptly and cannot be restored without a reboot. No > > error messages from either the kernel or whatever audio app I may > > be running at the time (which will continue playing, blissfully > > unaware that anything out of the ordinary is happening). For all > > outward appearances (other than aurally), everything seems to still > > be working perfectly normally. > > > > # uname -a > > FreeBSD serene.no-ip.org 10.0-CURRENT FreeBSD 10.0-CURRENT #1: Sun > > Jan 1 18:03:55 CST 2012 > > conrads@serene.no-ip.org:/usr/obj/usr/src/sys/CUSTOM amd64 > > > > # cat /dev/sndstat > > FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64) > > Installed devices: > > pcm0: <HDA Realtek ALC888 PCM #0 Analog> (play/rec) default > > pcm1: <HDA Realtek ALC888 PCM #1 Analog> (play/rec) > > pcm2: <HDA Realtek ALC888 PCM #2 Digital> (play) > > pcm3: <HDA Realtek ALC888 PCM #3 Digital> (play) > > > > Sorry I don't have any more useful diagnostic-type information. > > > > Does anyone else ever experience this sort of thing? Is there any > > way to get the sound going again, other than rebooting? > > > > Thanks! > > You could save good status with > sysctl -a > sysctl.good > mixer > mixer.good > then what it goes wrong, > sysctl -a > sysctl.bad > mixer > mixer.bad > diff -c sysctl.good sysctl.bad ; diff -c mixer.good mixer.bad > & if anything Has changed do a find & grep on the variable name. > > Cheers, > Julian Good idea. I'll do that. Thanks! -- Conrad J. Sabatier conrads@cox.net
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