Audio muted/disabled- red light coming out of jack????

what the heck? anyone know what's going on here? red light in my headphone jack and volume control non-operational. reset the PRAM to get speakers working for a moment before problem returned. works fine when headphones in, but not without.
and the red light shining out... what IS that?

Hey all-
I've worked on laptops before and didn't feel comfortable sticking a metal clip into it. I did snap the end off a Q-tip and wiggled the cardboard ever so gingerly and it went off. BUT later in the week the same problem occurred. I've got an appointment with Apple tomorrow and will keep you up to date on the "official word" with this problem. I'm still in the year warranty period (refurbished pruchased, year up in November) so they should replace anything that is failing this soon in the game.
Have a co-worker that just had a new MBP's video fail after less than a month of use---Apple replaced the whole machine, but only because it was in the first 30 days of purchase. Doubt they'll make me the same kind of offer. Still sorta miffed to have problems with my newest machine. Never had to get AppleCare, but think I'll have to with this guy... hope it's not IceBook Logic board blues for these first Intel offerings.

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Output speakers do not work, have a red light coming out of my headph. jack

My headphone jack works but theres a red light coming out of my headphone jack when its unplugged and my internal speakers will not work...anybody have an idea? Tried system preferences and says no options for selected audio and cant get any sound for my built in output speakers and my volume display in my bar is faded....HELP!

@Spencer
I know this thread was marked answered but thought I should chime in since my MBP (2.66Ghz Late '08, bought May '09) started to exhibit this behavior. I was getting "No Output" greyed out speaker images and the red light coming out from the headphone jack. It's been intermittent but finally wouldn't go away so I figured I'd contact Appe.
This afternoon I called Applecare and was advised to take it to the Apple store... no questions asked, no troubleshooting steps, just told me to take it to the store and even offered to make me an appt. I was able to get an appointment at the genius bar same day (literally 2 hours after I hung up the phone). My wife took a ride with me and we headed down there.
When I showed the technician she tested it and then went to the back room to double check something. When she came back she told me that it was hardware related and needed to be sent in for service. I am under warranty so it was no skin off my back but I will need to be without the machine for a few days.
I agree with Rod to take it in, esp. if you're still under warranty. I should also mention that this only started happening a few weeks ago but the red light part was rather sudden.
Good luck!

I have been experiencing a red light coming out the audio jack and no audio coming out of my Mid 2009 13.3" Macbook pro. I was wondering if Applecare would cover whatever this is?. I am covered until september 2012. Thanks

Can anyone help?

It should be covered. Contact Apple support
<http://www.apple.com/support/contact/>
for options available to you, or take your Mac to an Apple Authorized Service Provider.

How to switch off the red light (optical out) on my Audigy 2

I am not using the optical out most of the time, is there a way to switch off the red light coming out of optical out?red light is causing heat leading to cracks on the surface of the card.Please help soon. thx

Are you sure? AFAIK, LED's don't produce any significant amounts of heat. And, no, I don't think the light can be switched off.
-Dave
?[email protected]

Is it dangerous to look at the red light in the headphone jack?

I recently purchased an early 2009 model white MacBook. Today I was installing Windows on it and I noticed a red light coming out of the headphone jack. I thought there must be an LED in there to help you locate it in the dark. I was curious about it so I crouched down next to the computer and looked inside the jack to see what the deal was.
At the time I didn't know that there is such a thing as an optical audio jack. Obviously I now know that's what the red light was all about. Now I'm wondering if looking at that light could have injured my eyes. Is it a laser, an LED, or something else? Does anyone know how dangerous it is to look at that light? I looked directly at it from close range for perhaps 3-10 seconds, with eyeglasses on. I don't remember it seeming uncomfortable to look at.

Thank you both for your replies.
GfulDedFan wrote:
To the best of my knowledge, that light shouldn't be on when the port is empty.
Yes, my understanding is that that light should only ever come on when there is a Toslink mini-plug adapter inserted into it (or at least a regular 3.5mm analog plug). However, like you said, I've seen a number of posts on the internet about that switch that turns on the digital output (red light) getting stuck in the on position (even without having plugged in a Toslink adapter). My understanding is that in my case the light came on because I was in the process of installing Windows and the driver for the audio hardware hadn't been installed yet.
GfulDedFan wrote:
As far as harmful rays, I doubt that it would be harmful because I've read about this audio problem before but never with a cornea damage attached to it.
I did look inside the jack directly at the light. I think it might be the retina that would be at risk if anything, but in any case, I sure hope nothing was damaged.
JoeyR wrote:
The power for the lasers used for digital audio is very low.
Is it a laser?
JoeyR wrote:
Especially if you didn't find it uncomfortably bright.
I don't recall having a reaction that it was uncomfortably bright and then having to force myself to look at it. If it had seemed uncomfortable I don't think I would have continued to look at it.
I don't think I actually became concerned about it until I found out that the light is for digital audio output and wondered if it is a laser. Not that I recommend looking right at a bright LED either. But I wasn't expecting a bright LED either (let alone a laser) -- like I said, my first thought was that there must be an LED inside to make the jack easy to locate in the dark (I was in a darkened room at the time.
JoeyR wrote:
If you've ever, even very briefly, had a low power laser pointer hit your eye, you'd realize it is super bright.
Fortunately I haven't, but someone who did have a laser pointer aimed at their eye told me they noticed it when they felt a burning sensation on their eye.
JoeyR wrote:
Any damage would almost always be nearly immediate. If you haven't had a problem, you're fine.
Do you think any damage would be readily apparent right away, in the form of pronounced discomfort or noticeable vision problem?

Red light coming from my audio output, speakers not working

I read somewhere about wiggling a toothpick around in there, but that didn't work, any other ideas.
This happened after I had a 1/4 to 1/8 converter plugged in there to use a little mini amp.
I've lost the use of speakers.
headphones work fine
I think the optical input is still reading as if something is plugged in. Not sure if there's something in my system I need to switch, or if I need to take it in, have the jack opened up and replaced

Just to rule out the obvious make sure your mute switch (F3) is not on. If your 'switch is stuck' you would see a red light coming from the headphone port.
Double check your Sys Prefs - Sound settings ...if things still are not working you might try a SMC reset followed by a Pram reset that would restore your orig. settings.

Volume won't work - infrared light coming out of Headphone jack

I was using my headphones for a bit on my MBP and now that I took them out of the MBP, I noticed I can't adjust volume. Actually I cant hear anything. I can see infrared coming out of jack. Whats going on here?

Hi NittanyAgent,
Inside the audio output socket on the MacBook Pro (and MacBook) there is a small microswitch which is enabled when you insert the headphone jack. Of course, when you remove the jack it's meant to deactivate thus allowing you to use the internal speakers again. It appears that, in your case, it's stuck in the active position which is why you are seeing the red L.E.D. light shining through.
Try inserting and removing the headphone jack a few times. Others have also had success by, carefully, using a paperclip or toothpick.
If the above fails you may have to visit your local Apple Store or independent Apple Authorised Service Provider.
Kryten

Red light coming from the headphone port

does anybody know why there is a red light coming from the headphone port.
This is after i reformatted
Thanks
Moderator note; subject edited for relevancy

This is perfectly normal. You can run an optical digital out this way. You need a mini-toslink adapter like this:
http://en.wikipedia.org/wiki/Mini-TOSLINK
Then you can set the digital out as default (instead of Speakers) to run audio to a surround sound reciever via optical fiber.

HT2494 the sound won't work on my Macbook pro the headphone port actually has a red light coming from it

Can not get sound on my Computer. The headphone port actually has a red light coming from it. Help

Insert a headphone jack and remove it and see if the light goes out. The red light indicates the switch didn't switch from head phone to your Mac's speakers. Some folks have actually used a match stick to undo the switch.

Internal speakers suddenly will not unmute. My headphones work, and there is a red light coming from the headphone jack

I put my volume on mute a few weeks ago, and I don't know if I have used it again since then or not, but now the volume will not unmute. There is a red light glowing out of the headphone jack. Sound through headphones works. I've tried updating and restarting my computer. Help?

No, not forceful - gentle.
A PRAM-reset might also help:
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Immediately press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.Continue holding the keys down until the computer restarts, and you hear the startup sound for the second time.
Try this a few times.
Stefan

Found white powder in earphone connection and sound doesn't work, red light coming thru hole

I found a white powder accumulating in the earphone port which after cleaning out delicately, the sound on the computer is grayed off and a redlight comes thru the hole...what is happening, please help, thank you

It sounds as if you're 'stuck' in optical output mode. The usual 'fix' for this is to gently clean the port with a toothpick, until the red light goes out.
No idea what the white powder might be - you haven't spilled something around the port, have you?
Clinton

Unreliable sound - speaker symbol greyed out and red light in 3.5mm jack

Had my MacBook for 3 years with no problems. But over the past few months, the sound has been very unreliable. It always works when external speakers are plugged in, but when using the internal speakers it's very temperamental. It will just suddenly grey out the speaker symbol on the menu bar at the top, and a red light is visible in the 3.5mm jack socket.
Any ideas???

Your Mac believes that a digital audio cable is plugged in. You can use a toothpick or unbent paper clip to toggle the DA switch off. It's located along the side of the port, not at the back whence the light emanates.

Red light shining out of Headphone jack

What does it mean if a red light is signing out of your headphone jack? I think this can't be good.

The optical digital output has tripped on in the absence of the cable. There was a thread here before - do a search for red light.
One answer here
Go to Control Panel > SigmaTell Audio > click on the 3rd tab. On the bottom there is SPDIF, uncheck the "Enable Digital Output" voila!
http://discussions.apple.com/thread.jspa?messageID=2076875&#2076875

Suddenly no sound unless headphones connected and new red light ommitting out of that port

I've had my macbook connected to my speakers for much of the last couple of days. I reckon I last had sound from my actual macbook speak the day before yesterday - No nothing! The speaker icon in the menu bar is greyed out and in system prefs, all is normal and not muted. When I use the volume keys, the window comes up but the volume indicators don't move up or down and there is the forbidden/ no entry icon underneath the volume indicator bar.
There is also a new red light ommitting from the headphone port.
PLEASE HELP! (I'm using Lion 10.7.3)

That should read speaker not speak and NOW nothing, not no nothing. Sorry.

WHEN is the red pureview coming out???

Seriously want to get a pureview, but in red only. Anyone knows when it is coming out? Are they trying to do what Samsung did with their Galaxy S2 (white) which came out months later to boost the sales? I'm not sure if I can last till then as I might very well just get a iPhone 5.

Im having the same problem. I live in the netherlands and i can order a black or white one and have it home tomorrow, yet the red one doesnt seem to exist here. I really want the red one. By now i found an online store which claims to be able to deliver a red pureview. so i just ordered one. But their site still says it is in backorder. Please nokia i hope you can make me happy with the most awesome phone ever built. I hope you can send red pureviews out to shops so i can get my order home not too long from now.
Thanks in advance.
a loyal nokia customer.

Audio muted/disabled- red light coming out of jack????

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