From owner-freebsd-current@FreeBSD.ORG Sat Feb 21 18:16:53 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DA7591065670 for ; Sat, 21 Feb 2009 18:16:53 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from cmail.optima.ua (cmail.optima.ua [195.248.191.121]) by mx1.freebsd.org (Postfix) with ESMTP id 5E9338FC1E for ; Sat, 21 Feb 2009 18:16:53 +0000 (UTC) (envelope-from mav@FreeBSD.org) X-Spam-Flag: SKIP X-Spam-Yversion: Spamooborona-2.1.0 Received: from [212.86.226.226] (account mav@alkar.net HELO mavbook.mavhome.dp.ua) by cmail.optima.ua (CommuniGate Pro SMTP 5.2.9) with ESMTPSA id 235422533; Sat, 21 Feb 2009 20:16:52 +0200 Message-ID: <49A04510.5030405@FreeBSD.org> Date: Sat, 21 Feb 2009 20:16:48 +0200 From: Alexander Motin User-Agent: Thunderbird 2.0.0.19 (X11/20090118) MIME-Version: 1.0 To: Ben Kaduk References: <1235218982.00077642.1235207402@10.7.7.3> <499FFC5F.3020903@FreeBSD.org> <47d0403c0902210949i74473bc5j57c923e13c85e89@mail.gmail.com> In-Reply-To: <47d0403c0902210949i74473bc5j57c923e13c85e89@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Garrett Cooper , FreeBSD Current Subject: Re: Annoying whitenoise sound coming from snd_hda enabled chipset X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Feb 2009 18:16:54 -0000 Ben Kaduk wrote: > On Sat, Feb 21, 2009 at 8:06 AM, Alexander Motin wrote: >> Garrett Cooper wrote: >>> I don't know how else to describe it, but when I turn up my >>> speakers enough (50%+) and don't have any sound playing, I hear a >>> whitenoise hiss coming out of them. When I change webpages (nvidia >>> driver is GIANT locked) or do something else kernel intensive it stops >>> for a brief second, but apart from that it's an annoying trill sound >>> almost like a mosquito humming around me waiting to be swatted. >> I think it may be radio interference with disconnected microphone inputs. >> Try to set all unneeded mixer volumes to 0, especially mic, monitor, speaker >> and mix. Inputs often have too sensitive 20-30dB pre-amplifiers. Some codecs >> have them on all inputs. > > It's hard to be sure, since I'm not sure that I could describe what I > hear any better than Garret did, but I think I'm seeing the same sort > of thing on my work desktop. I'll try setting unneeded volumes to > zero the next time I'm in, and see if that helps. > > dmesg and pciconf are available here: > http://stuff.mit.edu/afs/sipb.mit.edu/user/kaduk/freebsd/periphrasis/ I see there some old 7.0-STABLE dmesg without any pcm. There is nothing to talk about. If you wish to have good working HDA, update to recent STABLE or at least take driver from there. -- Alexander Motin