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Old 11-10-2009, 05:20 PM   #1
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Registered: Nov 2006
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external mic not working on Dell XPS M1530, Ubuntu 8.04

I cannot for the life of me get the external mic working on my Dell XPS M1530 laptop, running Ubuntu 8.04, 2.6.24-25-generic kernel. The internal mic works fine. To try to get the external mic working, I have configured alsamixer to: Digital Input Source = Analog Inputs, Input Source = Front Mic (plus many other combinations). All of the relevant sliders are turned up. I tried adding the line 'options snd-hda-intel model=dell-3stack' (and other models) to /etc/modprobe.d/alsa-base, and rebooting. Other relevant info:

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
$ cat /proc/asound/card0/codec#* | grep Codec
Codec: SigmaTel STAC9228

Thanks in advance for any help you can provide.

Last edited by drkayak; 11-10-2009 at 05:49 PM.
Old 11-10-2009, 06:00 PM   #2
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Registered: Nov 2006
Posts: 13

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It appears I had the capture sliders in alsamixer set *too* high, so that the signal was cutting out completely, if that makes any sense. In any case, the mic is now working, using the settings I listed in the original post (which I tried to delete, but I'm an idiot, so couldn't).


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