2011/3/23 leon leon3000@gawab.com
Hello, i've Laptop Dell Inspiron 1520, the internal mic works perfectly, but external mic doesn't work,
i've followed this link: http://ubuntuforums.org/showthread.php?p=10352564 but it didn't help me,
here's the output of ALSA Information Script: http://www.alsa-project.org/db/?f=3aa8a44412081f533b2de3e32aae76ff4370eae9 btw, i've been using Ubuntu, and Debian now, both have same problem. so i haven't tried other Distributions.
any idea?
The digital mic at 0x17 is connected to [audio selector] 0x1d
The other analog input (e.g. ext mic 0x0b,..) are connected to [audio selector] 0x19
[audio selector 0x1d] can select either 0x17 or 0x19
There are two [audio selector] in the audio path from input pins to [Audio Input]
Refer to the owner of Dell Vostro 1500
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5288
It seem that alsa-driver-1.0.24 still has these bug since tthe driver does not call set_mic_route() to setup those dmix_idx of mux_idx of ext mic and digital mic