[alsa-devel] detect extern/internel mic
It's interesting that when I plug in a headphone or an external microphone, the build in headphone and microphone will not work.
Is it a driver feature or the hardware do it?
Can anyone give some clue? I'd like to see the code but don't know how to start. Please give me help. Thx!
At Thu, 10 May 2007 00:43:07 +0800, xinyun liu wrote:
It's interesting that when I plug in a headphone or an external microphone, the build in headphone and microphone will not work.
Is it a driver feature or the hardware do it?
Can anyone give some clue? I'd like to see the code but don't know how to start. Please give me help. Thx!
Needs more hardware information of your device for better diagnosis.
I guess it's a hardware, but some hda-intel drivers do that by themselves for usability, for example.
Takashi
I have test on my laptop by playing a long .wav file.
During playing, I plugged the external headphone, and the sound is continuously and switch from external headphone to internal speaker. It uses hda-intel driver. Does this mean it's the hardware do it?
Thx
2007/5/10, Takashi Iwai tiwai@suse.de:
At Thu, 10 May 2007 00:43:07 +0800, xinyun liu wrote:
It's interesting that when I plug in a headphone or an external microphone, the build in headphone and microphone will not work.
Is it a driver feature or the hardware do it?
Can anyone give some clue? I'd like to see the code but don't know how to start. Please give me help. Thx!
Needs more hardware information of your device for better diagnosis.
I guess it's a hardware, but some hda-intel drivers do that by themselves for usability, for example.
Takashi
participants (2)
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Takashi Iwai -
xinyun liu