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Macbook Headphone Jack


subzeroash
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The headphone port is noramally disabled in EFI (OpenFirmware on PPC systems) unless it detects that a circuit is being completed by the plug itself.

 

If this does not work, then you can go into /Applications/Utilities/Apple MIDI Setup

Uncheck the mute checkbox on Audio Output Master and watch it start working.

 

You can use Apple MIDI Setup to configure any aspect of the sound system including using the headphone/line-out port as you rear chanels on your MacBook to create a surround sound system when you are at home.

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The headphone port is noramally disabled in EFI (OpenFirmware on PPC systems) unless it detects that a circuit is being completed by the plug itself.

 

If this does not work, then you can go into /Applications/Utilities/Apple MIDI Setup

Uncheck the mute checkbox on Audio Output Master and watch it start working.

 

You can use Apple MIDI Setup to configure any aspect of the sound system including using the headphone/line-out port as you rear chanels on your MacBook to create a surround sound system when you are at home.

 

well i tried this, and no go. it wasn't muted, and it still didn't work

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Just to make sure, did you check the "Output Source" to make sure that it was the "Line Out" option?

 

yes i did. but here's the thinig. it has three channels - master, 1, 2. but i can't change master (m) and the volume looks all the way down. how can i change it?

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I think this is the problem (see picture with annotation). I am on a 2GHz Stock Black Macbook, and as you do, I also have a problem with sound from my headphone jack, and sound is important to me, so I need it...

 

 

 

Picture with annotation:

picture6vj9.th.jpg

 

 

Picture without annotation:

picture6noannotationct1.th.jpg

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Ah! Ok. I got the properties for it, but changing things doesnt work. Sound is still dead for the output. I think I am going to go back to Tiger because I am getting a lot of my apps crashing and stuff so yeh. Bye bye leopard, your going to have to stay on my external drive for now :D

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Personally what I tried to do, is install the tiger kexts using pacifist. I saved the output of kextstat to a file, and checked the loaded versions witht the tiger versions. Leopard did not want to load the tiger kexts.

 

However, you can find out all the loaded audio kext by exectuing the command

 

kextinfo -k

 

In theory, you could then try and recompile the tiger kexts for leopard.. But is this possible with closed source kexts? I lack expertise in this (in other) areas.

 

Erik006

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  • 4 weeks later...

So, I'm glad this isn't just me.

 

*sighs relievededly*

 

However, I can't use Leopard until this problem is solved. Fat lot of good this DVD does to me now, but on eBay it'd be worth something...

 

*Thinks*

 

(Joking)

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