Jul 04
MacBook Speakers Disabled
For you Macbook users:
I had a really strange problem last night. The internal speakers on my MacBook Pro stopped working. When I went to sound prefs, it showed optical digital audio output was enabled. When looked into the head phone jack, I could see it emitting a red light, which I had never seen before. Somehow, the digital audio mechanism had been activated, even though I have never inserted a digital audio device.
The fix was really high-tech… I inserted and removed my headphones a couple times until the red light went off and my internal speakers started working again.
Weird.
Thank you to MacRumors.com for the fix.

April 23rd, 2008 at 1:47 am
I had that problem and searched the net for help.
I ended up here and your tip helped me fix it! =)
thx
cheers from stockholm
July 18th, 2008 at 1:52 am
damn apple!
I think it’s a conspiracy to make u get applecare. I had this issue and thanks to this tip I fixed it. Also had a less than legitimate cdrom stuck in the drive that would not come out, had to have a buddy at work who is a mac pro basically jump through hoops and hold all kinds of buttons down while restarting several times to get it to come out.