How to use both audio outputs together?

Hi there,

I would like to know how to use both front audio outputs of the Dell Inspiron 1525 at once. When I use them seperately it works fine, they both give a signal. But when I plug an audio device into both, only the right one works. I already enabled everything I found in HDA Intel (alsa mixer).

Thank you very much

Post #6 worked for my 1420n: http://ubuntuforums.org/showthread.php?t=604314&highlight=headphone

Thanks for the answer, Denny.

Unfortunately it doesn't work for me. In "alsamixer" I have for some reason only the control for "master", nothing else (with F4 I can switch to "capture", that's all).

As far as I understood what's written in #6 there, that's only the solution for using laptop speakers and headphone output at once, but not both headphone outputs together.

What I found out so far:

• "Master" and "PCM" is for every output
• "Front" is for the internal speakers and the left audio output
• "Surround" has no for me noticable effect
• "Center" is for the LEFT box of the RIGHT audio output. So when it is unmuted, I have only sound on the right box, when it is plugged in the right audio output.

Thank you so far

Daniel Rentzsch said:

Unfortunately it doesn't work for me. In "alsamixer" I have for some reason only the control for "master", nothing else (with F4 I can switch to "capture", that's all).

If you open the Alsamixer Volume Control [double click Volume Icon]........do you have an Edit option?.......if so, if you click preferences, this should allow you to enable more visible controls.

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Yeah, I already did so, I enabled everything that has anything to do with output, and everything is enabled, too. Though, it does not work yet.

I read the instruction manual for the inspiron 1525 and it says that both are usual headphone outputs - so why does Dell built in two headphone outputs if only one can be used at once? Or what is the purpose of this?

Both of my outputs work at the same time since I applied the fix linked in the 2nd post above. Can you post a screenshot of your Alsamixer settings, after you open from terminal?