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Old 05-07-2004, 08:02 AM   #1
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Registered: May 2004
Distribution: Mandrake
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Unhappy the speakers of my Dell D800 deeply scream!!!


i have a problem with my Dell Latitude D800 audio card AC97/ICH3
i'm using Mandrake 10 Community and if i enable "sound" and ALSA (at boot or not) the speakers immediatly deeply scream like an alarm!!!
i can't do anything to silence them... i have waked up all in the house!!
at the moment i'm working with no audio.

sorry for my bad english and many thanks to anyone will want to help me.

Old 05-07-2004, 09:52 AM   #2
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sounds like some bad feedback.........
have you tried loading a different driver??
Old 05-12-2004, 10:51 AM   #3
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I have the same problem, but I don't have a solution yet.

All the web sites and posts that I've seen so far on the D800 with Mandrake 10 have said that they select the Alsa driver and it "just works".

I'll let you know if I find anything new...
Old 05-14-2004, 11:14 AM   #4
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I figured it out. It's just like 320mb said, it's feedback.

First, you'll want to disable the alarm output; the best way to do this is probably by plugging headphones in. I plug them into my dock; it should help if you plug them in to your computer directly as well.

Once you've done that, enable audio: /etc/init.d/sound start

Then open KMix. To tell you the truth, I really don't know what half of that all means, but all I had to do was:

Go to the "Input" tab. Click on the green light on 'Mic' to turn off the green light. That should do it.

For further experimentation, do the following:

Make sure 'Mic' is turned off. Now Click on the "Advanced" check box. Now click on 'Mic Boost' and make sure its green light is off.

Now click on the 'Mic' green light again to turn it back on. You'll notice that there is some noise generated by your speakers, presumably because the Microphone's input is being sent to the speakers as output.

Now if you want to hear the "deeply scream" part again, just click on the 'Mic Boost' green light to turn it back on; but then turn it back off!

Now if only I could find some documentation that told me what all those things in KMix (and alsamixer) really mean...

Also, I don't think I have audio through the dock into the headphones working yet. That, as I understand, requires usb-audio support in the kernel. I'm not sure if that's enabled in my Mandrake 10 install or not...


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