Date: Wed, 04 Jan 2012 23:21:52 +0100 From: "Julian H. Stacey" <jhs@berklix.com> To: "Conrad J. Sabatier" <conrads@cox.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: Sound intermittently stops working Message-ID: <201201042221.q04MLqEa018426@fire.js.berklix.net> In-Reply-To: Your message "Tue, 03 Jan 2012 18:55:38 CST." <20120103185538.49140809@cox.net>
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"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 -- Julian Stacey, BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com Reply below not above, cumulative like a play script, & indent with "> ". Format: Plain text. Not HTML, multipart/alternative, base64, quoted-printable.
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