[Chaseme]

My volume appears to be locked and won't turn up or down.

I don't know how it happened, but when I have headphones in the jack the volume control works, but when trying to play the sound out of the built in speakers, I get this:

I also have a red led emitting from the headphone jack.

Thanks in advance.

[Art Vandelay]

That happens when your Mac is connected to a digital output or thinks it still is. Try putting your Mac to sleep and waking it up or rebooting.

[Chaseme]

Thanks Art, I closed the lid on my macbook, opened it, and pulled the pin out of the headphone jack while it was waking up, it works now.

[Chaseme]

Oh wait, it went back to not working correctly.

[analogika]

I've found that when the Mac gets confused and thinks it's using the optical out, it can help to go into the System Preferences --> Sound and mess around with the Output settings a bit, and/or open up /Applications/Utilities/Audio-MIDI Setup and select the analog output there.

[Chaseme]

Originally Posted by analogika 

I've found that when the Mac gets confused and thinks it's using the optical out, it can help to go into the System Preferences --> Sound and mess around with the Output settings a bit, and/or open up /Applications/Utilities/Audio-MIDI Setup and select the analog output there.

If I go to the Sound pane on System Preferences or the MIDI sound preferences, it does not recognize the built in speakers.

Any suggestions?