[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

> 
> 
> 
> 
> Norman