[ltp] Thinkpad X40 --- no line in jack?!
Alex Deucher
linux-thinkpad@linux-thinkpad.org
Mon, 27 Sep 2004 13:55:52 -0400
On Mon, 27 Sep 2004 13:48:25 -0400, Norman Ramsey <nr@eecs.harvard.edu> wrote:
> > On Sun, 26 Sep 2004 21:55:42 -0400 (EDT), Norman Ramsey
> > <nr@eecs.harvard.edu> wrote:
> > > I've just discovered that my newly purchased X40 has no line-in jack
> > > for audio input from my stereo. (The salesman who told me that a single
> > > jack doubles as microphone and line in must have been crazy.)
> >
> > He's not crazy. many ports on newer sound cards do double or triple
> > duty. One jack my provide not only line in but mic and even
> > rear-channel line out depending on what "mode" the chip is in. I
> > think ALSA supports most of these situations via the mixer.
>
> I would love to figure out how. On my machine, alsamixer reports
>
> Card: Intel 82801DB-ICH4
> Chip: Analog Devices AD1981B
>
> and there's a `mic select' that's suggestive, also an `external
> amplifier' that can be turned on and off. But I don't want to just
> plug things in without knowing what's what, for fear of blowing my
> sound card's little circuits. Any idea where to look for
> documentation?
try asking on one of the alsa lists. http://www.alsa-project.org
Alex
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> Norman