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[Bug 1262667] [NEW] Microphone works, but line in not on laptop with one jack for line in and line out


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I have an interesting issue with Ubuntu. I have a laptop that has one
jack for line in/microphone and line out/headphones.

This the reason why I bought a spliter like in the attached image.

>Splits one 4 pines jack into two jacks: micrphone and line out

I have an external studio microphone and headphones with the micrphone.

## Case 1 (Working)

If I connect the micrphone of headphones to spliter that is inserted
into my laptop, I can record my micrphone.

                       +------- LAPTOP

## Case 2 (NOT Working)

If I connect another an external hardware (for example a piano) to the
splitter, I cannot record anything... This is the issue. How can Ubuntu
recognize if there is a headphones micrphone or an external hardware
that is NOT a headphones micrphone?

    PIANO  ------------+
                       +------- LAPTOP

...and the question is how to fix this? I want to record my piano using
my laptop: through line in.

Would be the splitter an cause?

Do I really need a hardware that I don't have (like an USB recorder)?


**Update**: tested with Windows 8 on same laptop. It works properly...
(Un)Fortunately, I am an Ubuntu user, so I will not go back to the
Windows world... Still searching for a solution on Ubuntu.

I asked this on AskUbuntu and no solution found...

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Tags: bot-comment hardware sound ubuntu
Microphone works, but line in not on laptop with one jack for line in and line out
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