Date: Sat, 21 Feb 2009 14:14:17 -0800 From: Garrett Cooper <yanefbsd@gmail.com> To: Alexander Motin <mav@freebsd.org> Cc: FreeBSD Current <freebsd-current@freebsd.org>, Benjamin Kaduk <kaduk@mit.edu>, Ben Kaduk <minimarmot@gmail.com> Subject: Re: Annoying whitenoise sound coming from snd_hda enabled chipset Message-ID: <7d6fde3d0902211414k571fa88ajcb1ba9771c2be423@mail.gmail.com> In-Reply-To: <49A07A1A.2030902@FreeBSD.org> References: <1235218982.00077642.1235207402@10.7.7.3> <499FFC5F.3020903@FreeBSD.org> <47d0403c0902210949i74473bc5j57c923e13c85e89@mail.gmail.com> <49A04510.5030405@FreeBSD.org> <alpine.GSO.1.10.0902211333260.28932@multics.mit.edu> <7d6fde3d0902211356h66b05cfcxf2ebbe9b2a6fd0f0@mail.gmail.com> <49A07A1A.2030902@FreeBSD.org>
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On Sat, Feb 21, 2009 at 2:03 PM, Alexander Motin <mav@freebsd.org> wrote: > Garrett Cooper wrote: >> >> On Sat, Feb 21, 2009 at 10:35 AM, Benjamin Kaduk <kaduk@mit.edu> wrote: >>> >>> On Sat, 21 Feb 2009, Alexander Motin wrote: >>> >>>> Ben Kaduk wrote: >>>>> >>>>> On Sat, Feb 21, 2009 at 8:06 AM, Alexander Motin <mav@freebsd.org> >>>>> 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 >> >> Unfortunately I must use mix though or line-in doesn't function >> from my console peripherals. It does appear to be the culprit >> unfortunately. > > Have you tried to mute other sources specifically? mix is just a sum of > inputs, it is not an input itself. You may read driver verbose boot messages > to find which inputs are mixed and how they controlled. As I suggested earlier it's Line, so again I'm stuck without line-in to my console peripherals :(. >> So I suppose I have to live with this issue until my SB Audigy >> card comes :(? This is something that should be noted in the driver >> manpage or you'll get more annoyed folks with support emails like this >> one ><... > > It won't help. People never read manuals, especially long ones. :( Yes, but what about the BUGS section, etc :)? -Garrett
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