From owner-freebsd-current@FreeBSD.ORG Sat Feb 21 18:51:46 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 591331065689 for ; Sat, 21 Feb 2009 18:51:46 +0000 (UTC) (envelope-from kaduk@MIT.EDU) Received: from biscayne-one-station.mit.edu (BISCAYNE-ONE-STATION.MIT.EDU [18.7.7.80]) by mx1.freebsd.org (Postfix) with ESMTP id EA9218FC19 for ; Sat, 21 Feb 2009 18:51:45 +0000 (UTC) (envelope-from kaduk@MIT.EDU) Received: from outgoing.mit.edu (OUTGOING-AUTH.MIT.EDU [18.7.22.103]) by biscayne-one-station.mit.edu (8.13.6/8.9.2) with ESMTP id n1LIZWuP020070; Sat, 21 Feb 2009 13:35:32 -0500 (EST) Received: from multics.mit.edu (MULTICS.MIT.EDU [18.187.1.73]) (authenticated bits=56) (User authenticated as kaduk@ATHENA.MIT.EDU) by outgoing.mit.edu (8.13.6/8.12.4) with ESMTP id n1LIZVAN010966 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sat, 21 Feb 2009 13:35:31 -0500 (EST) Received: (from kaduk@localhost) by multics.mit.edu (8.12.9.20060308) id n1LIZUk6013169; Sat, 21 Feb 2009 13:35:30 -0500 (EST) Date: Sat, 21 Feb 2009 13:35:29 -0500 (EST) From: Benjamin Kaduk To: Alexander Motin In-Reply-To: <49A04510.5030405@FreeBSD.org> Message-ID: References: <1235218982.00077642.1235207402@10.7.7.3> <499FFC5F.3020903@FreeBSD.org> <47d0403c0902210949i74473bc5j57c923e13c85e89@mail.gmail.com> <49A04510.5030405@FreeBSD.org> User-Agent: Alpine 1.10 (GSO 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Scanned-By: MIMEDefang 2.42 X-Spam-Flag: NO X-Spam-Score: 0.00 Cc: Garrett Cooper , FreeBSD Current , Ben Kaduk 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 18:51:46 -0000 On Sat, 21 Feb 2009, Alexander Motin wrote: > 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. Oops, I had been blocking on updating from 7 to current because of a bounce zone bug that was causing the box to panic, and I didn't update the dmesg after I did finally upgrade. Should be updated, now. Sorry about that, Ben Kaduk