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I have connected a console to the line-in of my computer. How can I make it so that the sound comes out of the speakers?

I've tried alsamixer and it didnt help

Im using Ubuntu 12.04

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computer / model / os version ? –  Eliran Malka Nov 2 '12 at 21:21
    
Im using Ubuntu 12.04. Not sure about the other info. Would it help if I list my lspci? –  Dbugger Nov 2 '12 at 22:10
    
which computer vendor is it (e.g. Dell / Asus / Toshiba)? and which model (e.g. Dell XPS / Asus ZenBook / Toshiba Satellite)? –  Eliran Malka Nov 3 '12 at 13:58
    
Its a custom computer. The parts were chosen individually. –  Dbugger Nov 4 '12 at 18:53
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2 Answers 2

Try use the pulse audio: module-loopback, this module loops all incoming audio back through your outputs ,that isn’t enabled in Ubuntu by default.

#manualy start the module-loopback
pactl load-module module-loopback

#configure your system to load module-loopback on startup
#this places load-module module-loopback at the end of
#the /etc/pulse/default.pa pulseaudio configuration file.
sudo sh -c ' echo "load-module module-loopback" >>  /etc/pulse/default.pa '

This solution is copied from: http://thelinuxexperiment.com/guinea-pigs/jon-f/pulseaudio-monitoring-your-line-in-interface/

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worked for me :), and the "couter-spell" to stop it again? –  humanityANDpeace Mar 18 '13 at 5:28
    
the "counter-spell" is pactl unload-module module-loopback #and counter-spell to stop loading module-loopback on system startup is sudo sh -c 'sed -i "/load-module module-loopback/d" /etc/pulse/default.pa' –  xranby Mar 18 '13 at 11:24
    
Thx, it seems so simple. I have in the meanwhile checked myself and it must be quite similar this pactl unload-module <ID of the modul> so the module name would not work in this case, which is counterintuitive... pactl list modules can yield the necessary <ID>. Thanks for responding. –  humanityANDpeace Mar 19 '13 at 5:31
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up vote 0 down vote accepted

In the end I entered into "alsamixer" and rised the level of the Line-in, which was at 0 and it worked (in Ubuntu 10.13)

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