From owner-freebsd-questions@FreeBSD.ORG Wed Sep 14 14:10:48 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8D7B2106566B for ; Wed, 14 Sep 2011 14:10:48 +0000 (UTC) (envelope-from web@umich.edu) Received: from 28dayslater.mr.itd.umich.edu (28dayslater.mr.itd.umich.edu [141.211.12.118]) by mx1.freebsd.org (Postfix) with ESMTP id 49E498FC0A for ; Wed, 14 Sep 2011 14:10:48 +0000 (UTC) Received: FROM hackers.mr.itd.umich.edu (smtp.mail.umich.edu [141.211.14.81]) By 28dayslater.mr.itd.umich.edu ID 4E70AFD0.537A2.17642 ; 14 Sep 2011 09:44:48 EDT Received: FROM itcom245.staff.itd.umich.edu (itcom245.staff.itd.umich.edu [141.213.135.249]) By hackers.mr.itd.umich.edu ID 4E70AFCF.5D9B.26869 ; Authuser web; 14 Sep 2011 09:44:47 EDT Date: Wed, 14 Sep 2011 09:44:46 -0400 From: William Bulley To: freebsd-questions@freebsd.org Message-ID: <20110914134446.GA9714@itcom245.staff.itd.umich.edu> Mail-Followup-To: freebsd-questions@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Subject: Thinkpad audio question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Sep 2011 14:10:48 -0000 A friend of mine has an IBM T500 Thinkpad which is nearly identical to the one I have. We both have interesting audio issues. Any ideas as to why the problems explained below exist would be greatly appreciated. My T500 shows two devices /dev/mixer0 and /dev/mixer1 corresponding to pcm0 and pcm1 as displayed by % cat /dev/sndstat in 8.2-PRERELEASE from January 2011. I am able to hear audio on the built-in speakers using /dev/mixer1 but not able to hear audio when plugging stereo headphones into the green "audio out" jack. However, the speaker audio is muted when the headphones are plugged in. I have tried two different head sets to rule out flawed hardware. My friend's T500 is more up-to-date than mine (likely 8.2-STABLE) but in his case headphone audio works perfectly and he has had no luck in getting audio out of his built-in laptop speakers. Very weird... This situation sucks, but we have not been able to suss out what the problem is. He and I have been running FreeBSD for over a decade, so we are not clueless, but this laptop audio weirdness has us stumped. Regards, web... -- William Bulley Email: web@umich.edu 72 characters width template ----------------------------------------->|