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Re: Disabling mic at startup, was: How do I start mixerctl as first daemon?

On 28 September 2015 at 21:28, Ottavio Caruso
<> wrote:
> On 28 September 2015 at 19:39, Ottavio Caruso
> <> wrote:
>> I have this annoying problem with my Thinkpad.
>> When the laptop boots, the microphone goes into a loop with the
>> speaker and emits a loud beep that scares the whole neighborhood.
>> I've enable mixertcl in rc.conf, but it gets executed after all deamons.
>> Can I alter the init sequence to make mixerctl start as first daemon?
> I've realized that the microphone is started way before all daemons
> are started. In other words the mic is probed during the device
> discovery sequence (when the characters are green on the console).
> The built in mic is mapped by mixerctl as inputs.record2.
> Is there any way to map this entry to a driver, and if possible to
> manipulate it.
> My dmesg is here:

Answering my own question. The relevant line in dmesg appears to be:

hdafg0: ADC01 2ch: Mic In [Jack] [Built-In]

How do I tell the driver to be quiet?


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