From owner-freebsd-multimedia@FreeBSD.ORG Wed Jan 4 22:58:42 2012 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DF81D106566C for ; Wed, 4 Jan 2012 22:58:42 +0000 (UTC) (envelope-from jhs@berklix.com) Received: from tower.berklix.org (tower.berklix.org [83.236.223.114]) by mx1.freebsd.org (Postfix) with ESMTP id 4D9348FC13 for ; Wed, 4 Jan 2012 22:58:42 +0000 (UTC) Received: from mart.js.berklix.net (pD9FBF5E0.dip.t-dialin.net [217.251.245.224]) (authenticated bits=0) by tower.berklix.org (8.14.2/8.14.2) with ESMTP id q04MMFO4007679; Wed, 4 Jan 2012 22:22:16 GMT (envelope-from jhs@berklix.com) Received: from fire.js.berklix.net (fire.js.berklix.net [192.168.91.41]) by mart.js.berklix.net (8.14.3/8.14.3) with ESMTP id q04MM4U7009665; Wed, 4 Jan 2012 23:22:04 +0100 (CET) (envelope-from jhs@berklix.com) Received: from fire.js.berklix.net (localhost [127.0.0.1]) by fire.js.berklix.net (8.14.4/8.14.4) with ESMTP id q04MLqEa018426; Wed, 4 Jan 2012 23:21:58 +0100 (CET) (envelope-from jhs@fire.js.berklix.net) Message-Id: <201201042221.q04MLqEa018426@fire.js.berklix.net> To: "Conrad J. Sabatier" From: "Julian H. Stacey" Organization: http://www.berklix.com BSD Unix Linux Consultancy, Munich Germany User-agent: EXMH on FreeBSD http://www.berklix.com/free/ X-URL: http://www.berklix.com In-reply-to: Your message "Tue, 03 Jan 2012 18:55:38 CST." <20120103185538.49140809@cox.net> Date: Wed, 04 Jan 2012 23:21:52 +0100 Sender: jhs@berklix.com Cc: freebsd-multimedia@freebsd.org Subject: Re: Sound intermittently stops working X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jan 2012 22:58:43 -0000 "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: (play/rec) default > pcm1: (play/rec) > pcm2: (play) > pcm3: (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.