>On Sat, 5 May 2001, Christopher M. Kelty wrote:
>>
>> Does anyone have experience with microphone feedback on a laptop?
>> I'm using 2.2.r3 with 2.4.0 on a Travelmate 732TLV. I'm using the
>> essolo1.o and the sound.o modules. If I use any mixer (like gmix) I
>> can mute the microphone, but when I reboot the settings are lost and
>> I am reminded of this fact by a very loud high pitched noise at
>> bootup :)
>>
>> does anyone know a way to keep the mic muted?
>>
>when you reboot are you actually using the sound system? I had very
>similar problems with ALSA and unfortunately the problem always occurs in
>my lecture theatre when I fire up my laptop to copy down notes. Hmmmm 200
>people looking at you is kinda embarassing :)
>
>The way to solve the problem was to make sure the machine actually cleanly
>shutdown. With ALSA there is an option to kill all the programs using it
>just before the modules are unloaded and the mixer settings are saved to
>disk. If you don't plan to use ALSA (which if you don't on a laptop you
>need a damn good reason, mainly as it supports *properly* suspend/resume
>cycles) make sure you have killed all the programs that are using the
>sound card, not just the MP3 playing ones but also the mixer setting
>programs (gmix in your case).
Yes, without ALSA, even if everything is properly shut down, the
problem recurs-- but I don't have any other way of controlling the
modules, so I will do as you say and give ALSA a shot...
ck
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