Date: Mon, 16 May 2011 20:24:32 +0200 From: David Demelier <demelier.david@gmail.com> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: snd_hda : sometimes sound sometimes not Message-ID: <4DD16BE0.4010307@gmail.com> In-Reply-To: <20110516163249.GA65301@volcano.org> References: <4DCB8271.3070707@gmail.com> <4DD14F38.1030009@gmail.com> <20110516163249.GA65301@volcano.org>
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On 16/05/2011 18:32, Clifton Royston wrote: > On Mon, May 16, 2011 at 06:22:16PM +0200, David Demelier wrote: >> On 12/05/2011 08:47, David Demelier wrote: >>> Hello, >>> >>> I don't know if there is a lot of changes in the snd_hda driver in the >>> -STABLE branch but since I upgraded to it sometimes I have sound and >>> sometimes not. >>> >>> The mixer are exactly the same when these event occurs. This happened >>> this morning. After booting I do not have any sound. I rebooted and >>> suddenly I've got sound again... >>> >>> I only tweak snd_hda(4) for a pin sense on the front panel (it has no >>> sound neither) >>> >>> So I added in /boot/devices.hints : >>> hint.hdac.1.cad0.nid27.config="as=1 seq=15" >>> >>> And there's the both dmesg ok.txt when sound is here and not.txt when >>> there isn't as you can see there is no difference related to the hda >>> driver. >>> >>> http://markand.malikania.fr/ok.txt >>> http://markand.malikania.fr/nok.txt >>> >>> I'm guessing something. My laptop has a mute shortcut, if I press it at >>> the BIOS stage I will not have sound neither thus is it possible that my >>> chipset is muted from anything? >>> >>> Cheers, >>> >> >> I will try to downgrade 8.2-RELEASE and then update the kernel code to >> more specific version to see where the regression happens. >> >> How can I try this step by step ? Should I try to svn / cvs day per day? > > At least do a binary search via svn revision on the regression: > > That is, look up the current revision of stable you are on, look up > the revision of the 8.2-RELEASE branch point, and update to halfway in > between. If it has the problem, go halfway between that and the > 8.2-RELEASE, if it doesn't, go halfway between that and your current > revision, and so on. > > This approach will cut the number of updates and builds you need to > try to the logarithm of the number of distinct revisions. My > impression is that it's so obvious to some people they never mention > it and to others it's a complete revelation. > > -- Clifton > Hi, I downloaded RELENG_8 src/ via cvs because I usually used csup instead. I absolutely have no idea how to find the middle between 8.2-RELEASE and my 8-STABLE revision though :-( Cheers, -- David Demelier
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