From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1JjxXP-0000qh-T5 for garchives@archives.gentoo.org; Thu, 10 Apr 2008 14:14:04 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 35484E0574; Thu, 10 Apr 2008 14:13:42 +0000 (UTC) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by pigeon.gentoo.org (Postfix) with ESMTP id D94EDE0574 for ; Thu, 10 Apr 2008 14:13:41 +0000 (UTC) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JjxWz-0004l9-Lv for gentoo-amd64@lists.gentoo.org; Thu, 10 Apr 2008 14:13:37 +0000 Received: from ip68-230-99-4.ph.ph.cox.net ([68.230.99.4]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 10 Apr 2008 14:13:37 +0000 Received: from 1i5t5.duncan by ip68-230-99-4.ph.ph.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 10 Apr 2008 14:13:37 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-amd64@lists.gentoo.org From: Duncan <1i5t5.duncan@cox.net> Subject: [gentoo-amd64] Re: sudden sound loss Date: Thu, 10 Apr 2008 14:13:28 +0000 (UTC) Message-ID: References: <47FDFD4E.1050301@ercbroadband.org> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@lists.gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ip68-230-99-4.ph.ph.cox.net User-Agent: Pan/0.132 (Waxed in Black) Sender: news Content-Transfer-Encoding: quoted-printable X-Archives-Salt: ae4d8a1f-1011-4a04-8a23-f10f2d851077 X-Archives-Hash: e7ea33084f8d76cd5cfd9b4717bf9a01 "Mark Haney" posted 47FDFD4E.1050301@ercbroadband.org, excerpted below, on Thu, 10 Apr 2008 07:43:10 -0400: > I've beat my head on this for a week now and I can't come up with any > answers. For some reason sound has stopped working completely on my > laptop. I've checked dmesg and syslog for any errors and nothing shows > up concerning the kernel having problems loading the driver (ATI IXP). > I've not updated the kernel until yesterday (was using 2.6.23-r9 for a > month prior to this morning when I booted up into the new .24 kernel > (-r4) and still no sound. It seems rather obvious that it's a > library/software problem, but I have no idea how to start looking for > that. I've run revdep-rebuild a couple of times and it's rebuilt > non-sound related packages. alsamixer has the sound ard right and the > volume level right. OK, simple stuff first. If you hadn't changed the kernel or alsa about the time it happened...=20 you mentioned the sound card was still right and the volume was up, but=20 didn't mention whether you checked the mute. Also, check any switches. On some cards, switching the digital sound on=20 switches analog sound off and the reverse. There may also be a toggle=20 switch for the on-card amplifier. You don't mention your setup. Here for instance the computer output is=20 to a regular home audio system channel input. If your system is similar,= =20 check that the system in question still plays the radio or other input,=20 IOW, that it's the computer that's out not the home audio system, and=20 check the cabling between the two. If you run directly off the card to=20 speakers, make sure they're plugged in, and if powered, that they have=20 power and are on. Try using alsamixer from a terminal window or the console command line as= =20 your mixer. I've noted that sometimes the regular GUI mixers get mixed=20 up and don't show the critical controls. In particular, I had a card at=20 one point that had a mute or toggle of some sort that about half of the=20 GUI mixers couldn't see or control, but alsamixer could. It had to be in= =20 the right position to play, so for awhile, at every boot, I had to load=20 alsamixer and toggle that switch, before I got sound. After that, I=20 could use whatever GUI mixer I wanted to control volumes and the like,=20 but I had to use alsamixer to turn it on properly at every boot. While=20 that issue is long since resolved, since then, every time I have a=20 problem, I use alsamixer to see what's really going on. Finally, while testing, use a player that has a visual output as well. =20 That way, you can /see/ if it's actually playing, too. I've had a couple= =20 times with sound servers and/or Internet audio streams where it was=20 supposed to be playing according to the input graph (the incoming=20 Internet stream or player into the sound server), but the output graphic=20 was flatlined, indicating there was no actual sound being played (due to=20 a buffering error, either with the Internet stream or with the sound=20 server). In both cases, I thought it was alsa or the amplifier until I=20 noticed the flatlined activity monitor indicating nothing actually=20 playing. --=20 Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman --=20 gentoo-amd64@lists.gentoo.org mailing list