Sound problems in Unity - input but no output

Posted by ana on Ask Ubuntu See other posts from Ask Ubuntu or by ana
Published on 2011-06-25T12:27:35Z Indexed on 2011/06/25 16:30 UTC
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sound

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nvidia

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hdmi

I am new to Ubuntu, having just installed it for the first time on my Lenovo Thinkpad.

Since I installed it I have no sound output whatsoever. However, I can see from the graphical interface in Sound Preferences > Input that the sound input appears to be working correctly.

I have tried the following:

https://help.ubuntu.com/community/HdaIntelSoundHowto
https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules
ubuntu-bug audio

I have two sound cards,

cat card0/codec* | grep Codec 
Codec: Conexant CX20585 
Codec: Conexant ID 2c06 

cat card1/codec* | grep Codec
Codec: Nvidia GPU 0b HDMI/DP
Codec: Nvidia GPU 0b HDMI/DP
Codec: Nvidia GPU 0b HDMI/DP
Codec: Nvidia GPU 0b HDMI/DP

And now have pretty much run out of ideas. Can anybody help?

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