[ltp] Re: T61 volume permanently muted

[Owen Heisler]

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On Fri, 2007.08.31 18:43, Marius Gedminas wrote:
> On Fri, Aug 31, 2007 at 09:48:02AM -0500, Owen Heisler wrote:
> > On Fri, 2007.08.31 15:22, Marius Gedminas wrote:
> > > On Thu, Aug 30, 2007 at 04:59:40PM -0500, Owen Heisler wrote:
> > > > Well, I restarted again, and then alsamixer and aplay worked, thoug=
h with no
> > > > sound.  I hit the VolumeUp button, and then it worked.  Okay.  So t=
he Mute
> > > > button seems now to mute at the hardware level, and not unmute when=
 pressed
> > > > again.  VolumeDown does nothing.  VolumeUp simply unmutes.  The Mut=
e button
> > > > didn't cause the ALSA problems this time as before.
> > >=20
> > > Interesting.  As far as I remember, Mute on thinkpads always muted at
> > > the hardware level, and you had to press volume up/down to unmute.
> >=20
> > Not so bad, except that when I say "VolumeDown does nothing" and "Volum=
eUp
> > simply unmutes", I really mean that: they don't adjust the volume eithe=
r, at
> > either hardware or software level.
>=20
> I think the hardware effect depends on some bits in
> /proc/acpi/ibm/hotkey mask.
>=20
> The software effect depends on other things, such as having the correct
> mixer channels selected in gnome-sound-properties, the keys generating
> keyboard events (which may need the thinkpad-keys daemon or a newer
> thinkpad-acpi registering an input device), and key bindings mapping
> those to volume control.

In order to configure the keys to work with ALSA, the hardware effect needs=
 to
be disabled, right?  "echo enable,0xffff >/proc/acpi/ibm/hotkey" didn't wor=
k.
Is there anywhere I can find information about setting the mask?

Oh, I see something on
http://www.thinkwiki.org/wiki/How_to_get_special_keys_to_work
that I didn't see before about getting the volume keys to work using tpb; I=
'll
try it later.

Thanks

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