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Date:      Thu, 30 Dec 2004 10:32:31 +0000
From:      Josef Karthauser <joe@FreeBSD.org>
To:        Nate Lawson <nate@root.org>
Cc:        freebsd-acpi@FreeBSD.org
Subject:   Re: Sony VGN-A290
Message-ID:  <20041230103231.GA1428@genius.tao.org.uk>
In-Reply-To: <41D33DAA.2010707@root.org>
References:  <20041229093006.GB8264@genius.tao.org.uk> <41D2F750.4080204@root.org> <20041229201236.GB14714@genius.tao.org.uk> <41D33DAA.2010707@root.org>

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On Wed, Dec 29, 2004 at 03:28:42PM -0800, Nate Lawson wrote:
> >
> >Yup, the defaults appear to be ok.
> >
> >My guess is that the cd audio is routed via the laptop controller or
> >something.  There's something funny going on.  The docking station has
> >it's own amp and speakers and when the laptop is plugged into it I get
> >no sound out at all, but it returns when I disconnect the laptop; the
> >internal speakers get re-enabled.
>=20
> Oh, I see.  I thought you couldn't hear the CD player whether or not you=
=20
> are docked.
>

Unfortunately that's the case, I'm not sure why.  I'm taking to ripping
the audio and playing it using the pcm device instead as I can't hear it
natively, dock or no dock.

> You can see your ACPI view of the device tree with:
>    acpidump -d | grep Device
>=20
> You'll probably have a DCK (dock) device that has some sound device=20
> under it.  We don't have much docking support currently but if you boot=
=20
> while docked, devices on it should work fine.  I have patches for basic=
=20
> docking support but the problem is there are many device drivers that=20
> don't handle this properly yet.  For instance, if you have a floppy=20
> drive bay in the dock, the fdc(4) driver doesn't know yet how to handle=
=20
> an undock event.  We're just lucky that most laptops so far let the BIOS=
=20
> handle things.

I'll take a look when I'm next docked to see what appears there.  When
docked I get no sound at all.  It would be good to get that working.

Joe
--=20
Josef Karthauser (joe@tao.org.uk)	       http://www.josef-k.net/
FreeBSD (cvs meister, admin and hacker)     http://www.uk.FreeBSD.org/
Physics Particle Theory (student)   http://www.pact.cpes.sussex.ac.uk/
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D An eclectic mix of fact an=
d theory. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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