Date: Wed, 20 Mar 2013 18:26:02 +0100 From: Pierre Emeriaud <petrus.lt@gmail.com> To: Patrick Lamaiziere <patfbsd@davenulle.org> Cc: freebsd-multimedia@freebsd.org Subject: Re: ATI IXP400 issue : very low output Message-ID: <CA%2BPSOpxG9-4CaEppGP%2BgDt6KkprJFMoZfVg9VW-MBJ%2BaK=mytQ@mail.gmail.com> In-Reply-To: <20130313002659.2763924f@davenulle.org> References: <CA%2BPSOpww%2ByXyLoB3%2BayRcUkHG24uY_WrEXUiKguinQr_9WPM=w@mail.gmail.com> <20130313002659.2763924f@davenulle.org>
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Hello Patrick, list, 2013/3/13 Patrick Lamaiziere <patfbsd@davenulle.org>: > Le Sat, 9 Mar 2013 15:04:15 +0100, > Pierre Emeriaud <petrus.lt@gmail.com> a =E9crit : > > Hello, > >> I have a sound issue with my recently-installed FreeBSD. The >> motherboard has a ATI IXP400 with an ALC655 chip. >> >> At first I thought that output wasn't working. But increasing the >> volume on the amplifier I was using resulted in a *very* weak sound >> output, which sounds like a leakage current being amplified. Whereas >> I'm using an application (I've been testing with vlc) or directly >> piping random to /dev/dsp0, I get the same output level. > > I've seen something similar on a Macbook pro (very very low output). I > must add an "ovref" quirk. > > (/boot/loader.conf) > hint.hdaa.0.config=3D"ovref" I've tried this, no change unfortunately. This looks like a snd_hda driver quirk, which I'm not using, and snd_atiixp doesn't show any obvious quirks. AC97 however has some, and AC97_F_EAPD_INV looks suspicious. On a fedora forum I found that someone put "snd-atiixp ac97_quirk=3Dinv_eapd" as driver option. Is there a way with Freebsd to change the value of AC97_F_EAPD_INV? Anyway, thanks for the suggestion Patrick :) regards, Pierre
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