[ltp] Thinkpad R40 mic input and phantom power

[Christopher Sawtell]

On Tue, 20 Dec 2005 15:44, Ben Pearre wrote:
> I know, I should call IBM or Intel, but I like you guys better :)
>
> Any idea whether the R40's soundcard supplies "phantom power" to the
> microphone jack?
If you plug a pair of headphones into the Mic. jack you hear plops and 
bangs. I recon that means that the answer is 'yes'. For the definitive 
answer use a very high resistance voltmeter. i.e. a digital one.

> Or whether ALSA lets you control this? 
Goodness only knows.

-- 
CS