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Old 08-15-2008, 07:06 AM   #1
binary1011100
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Registered: Apr 2006
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Question Mysterious sound issues with Linux Kernel 2.6.26.2


I'm not sure that anyone is going to be able to help me with this problem, but I just thought I would post anyway and see.

This problem is certainly one of the strangest I've come across

I own a Dell Inspiron 1525 and am running Debian GNU/Linux (lenny).

Ever since I compiled this new version of the kernel (Linux Kernel 2.6.26.2), I've been having strange issues with sound: sound works fine when playing through laptop speakers, but when I connect any set of speakers/headphones to either of my 3.5 out jacks, the sound plays fine for a couple of second and then very gradually the volume reduces until there is no sound at all.

The volume controls remain at the same levels.

I find this to be a strange problem, maybe there is something simple I'm missing, if anyone can shed some light on this problem I would be extremely grateful
 
Old 08-15-2008, 07:38 AM   #2
biophysics
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just run
alsamixer

in a terminal. Now play a file - check it the speakers sound properly.

Now put the headphone and see if there are any changes in the alsamixer window. may be the hardware is muting both laptop and headphone. in that case you need to find out which channel is being muted automatically.

(if you do not have alsamixer - just search packages.debian.org)
 
Old 08-15-2008, 08:18 AM   #3
binary1011100
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Arrow No :-(

One more note is that the if the speakers are already plugged into either of the 3.5 jacks then the volume does not get reduced, it is only when I plug a device in whilst my system is running that the volume gets reduced.

I tried the same thing with alsamixer open at the same time and alsamixer showed no change in the levels.
 
  


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