At Thu, 1 Oct 2009 00:32:31 -0400, Daniel Chen wrote: > > On Wed, Sep 30, 2009 at 2:06 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: > > Thanks. But, basically it means that a quirk in the driver is > > needed to revert the EAPD switch. > > Could you check whether ac97_quirk=inv_eapd module option for > > snd-intel8x0 works? > > I've received confirmation from the bug reporter that using the quirk > makes analog sound audible by default. Attached is a patch against > current sound-2.6 HEAD making this change. Thanks, applied now. Takashi > > -Dan > [2 0001-Mute-External-Amplifier-by-default-for-Sony-VAIO-VGN.patch <text/x-patch; US-ASCII (base64)>] > From 9c64d1c19954f1ed91cb170855829903fcf3b7e3 Mon Sep 17 00:00:00 2001 > From: Daniel T Chen <crimsun@xxxxxxxxxx> > Date: Thu, 1 Oct 2009 00:28:16 -0400 > Subject: [PATCH] Mute External Amplifier by default for Sony VAIO VGN-T350P > > BugLink: https://bugs.launchpad.net/bugs/410933 > > This Sony VAIO model needs External Amplifier unmuted for audible > playback, so make sure we set the inv_eapd quirk. > > Signed-off-by: Daniel T Chen <crimsun@xxxxxxxxxx> > --- > sound/pci/intel8x0.c | 6 ++++++ > 1 files changed, 6 insertions(+), 0 deletions(-) > > diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c > index 171ada5..86e9a2d 100644 > --- a/sound/pci/intel8x0.c > +++ b/sound/pci/intel8x0.c > @@ -1954,6 +1954,12 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = { > .name = "Sony S1XP", > .type = AC97_TUNE_INV_EAPD > }, > + { > + .subvendor = 0x104d, > + .subdevice = 0x81c0, > + .name = "Sony VAIO VGN-T350P", /*AD1981B*/ > + .type = AC97_TUNE_INV_EAPD > + }, > { > .subvendor = 0x1043, > .subdevice = 0x80f3, > -- > 1.6.3.3 > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
