Internal Speakers Disappeared

I have a MacBook Pro, purchased in September 2009.
Yesterday I used headphones. This morning, the internal speakers are gone. I've seen forum after forum online and none of the fixes work.
It doesn't appear to be a case of the computer "thinking" that the headphones are still plugged in as the light isn't on and "Sound" (in System Preferences) recognizes when the headphones are plugged in and when they are not. Thus, I don't think any of the toothpick or paper clip fixes are appropriate.
I tried the ALT-APPLE-P-R (or whatever it was) "fix" - nada.
This is ridiculous. Judging from the forums "out there," this has been a problem for several years. Shouldn't Apple just post a fix instead of suggesting that we have to pay $49 for someone to tell us what it is?
Any ideas on other solutions????? HELP!!!!!!

Usually this occurs when the head phones are pulled out to quickly. But since you have reset the PRAM (Command-Option-P-R) and the system does not recognize the headphones being connected I can only offer one solution before calling the AppleCare support group.
The following knowledge base article will assist you in reseting the systems SMC (System Management Controller).
http://support.apple.com/kb/ht3964
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer. Note: The LED on the MagSafe power adapter does not change states or temporarily turn-off when you reset the SMC.

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Internal speakers disappear when headphones are removed

My built in mac book speakers disappear when I remove my headphone. The system preferences says that they are not present. I've tried restarting and resetting pram. Any other suggestions would be greatly appreciated.

Have you tried blowing into the headphone jack? There could be an accumulation of dust in there.

MacBook Pro internal speakers disappeared and keyboard won't light up

yesterday I realized my internal speakers were not working on my MacBook Pro. The red light comes off in the headphone jack. I tried to plug my headphones and take them out to get my computer to recognize the internal speaker but nothing seems to be working. i was using mountain lion so I decided to install yosemite to see if that would fix my problem but it did not. In fact this morning after Yosemite was installed I noticed that my keyboard lights were also "locked" just like my speakers. I tried the PRAM reboot and the sudo terminal code but none of these have worked so far... Any ideas of what I could do?
I Would like to specify that in my preferences for sound nothing is muted not is the wrong device selected, there are no devices available as if my internal speakers had disapeared

1. Applications > Utilities > Audio MIDI Setup
    Audio Devices window
    Side Bar
    Click the Built-in Output.
    Under Mute any of the boxes checked? If so, uncheck it.
    Make sure that CH1 and CH2 volume sliders are at the middle and matched.
2. System Preferences > Sound> Sound Effects
    Play sound effects through:
   Select "Internal speakers" and then back to "Selected sound output device".
If this does not help, you have to take the computer to the Apple store to have it checked out.
Best.

Sound from internal speakers on iMac not working

I've been having a recurring problem where the internal speakers constantly lose connection. When I go to sound preferences, the internal speakers disappear from the device list in the output tab. I've also noticed that plugging in my own headphones does not solve the problem, sound is still lost and regained. I have no idea what is causing this. I am currently working on the current software(Version10.9.4).

Here is one that worked for another user it may work for you
ObiJuan2080Sep 3, 2012 2:02 PM Re: internal speakers no sound
Re: internal speakers no soundin response to noondaywitch | This solved my question
Here's what worked for me. It's not a workaround, this acutally solved the problem and I haven't had speaker issues since.
Go to "Activity Monitor" (you can hold "Command" "Shift" and press "U" if you're on the desktop).
Locate "coreaudiod" under "All Processes"
Right click it and click on "Quit"
After several seconds, "coreaudiod" will restart on it's own and your speakers will return to normal.
I tested this by restarting to see if it was a fluke workaround. Then I turned it off and waited a day (I had things to do so the waiting a day was easy lol). Turned it on, it was fine. I put it on sleep mode, waited 10 mins. and took i off of sleep mode. It was fine. Everything went back to normal for me.
Let me know if this worked for you.
Good Luck and Cheers
Don

Disappearing internal speakers

hi guys. i have recently come across the problem where sound no longer come out of my internal speaker. after checking various software etc, i looked in my system prefs > sound and in the sound effects panel, the only option is headphones and in output panel again only headphones are available.
this is an intenittent problem. sometimes it works fine, then, usually after being on for a while, the internal sound disappears! nightmare!!!
I have tiger and all updated, so everything is up to date (which i suppose could be the problem).
anyone else had the same issue, and if so, how did you fix it?
much appreciated,
Mark

Hi Mark,
This issue seems to be showing up here more and more over the past few months, but it seems more often than not, users have not come up with a solution; you may want to do a search here in the Usage folder for "sound" and/or "speakers" and I'm sure you'll find threads on the topic.
Good luck.

My internal speakers are not showing up in output preferences

Head phones work fine. As soon as I unplug the head phones the sound icon goes from black to greyed out. The port works fine because if it was stuck it would not go from black to greyed out every time I plug and unplug the headphones. So the sensor is working and letting me know when the head phones are plugged in so please don't suggest a jammed port as an option. If it was stuck the icon would stay on constantly. When I look under system preferences>sound>output I only have headphones and Apple TV as an option. The internal speakers have disappeared from the list. When I reboot the macbook I get the familiar sound of the start up so I know the speakers work. I believe the problem started when we got Apple TV AirPlay but it could be a coincidence. Also I have been looking through the forums dating back to 2006 and have not found any thing that works. Thanks for any new information.

Try resetting the SMC and PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM

10.4.10 Audio Popping Issues: Information Check with Internal Speakers

For people with internal speakers, or those without subwoofers: Please read all the way to the bottom to find a test that will determine whether you are also having audio problems, even if you can't hear pops.
We've had a lot of discussion about audio popping due to 10.4.10, and the evidence indicates that the audio circuitry is going to sleep to conserve power, even on AC-only computers like the iMac, Mac Mini, and (at least one) Mac Pro. Some people claim to not have this problem, but I'm wondering if they just aren't noticing it.
Having external speakers with a subwoofer, set to high amplification, are key to obvious detection of the problem. Let the sound subsystem go idle for 30+ seconds (wait a minute with no audio, just to be safe), turn up your external speakers really loud, and cause the computer to make a sound. You should hear a burst before the sound plays. If you repeat the sound, you won't hear the burst. This is the sound of the audio circuitry powering on, and the speakers are amplifying it.
About 30 seconds after the sound finishes playing, if you leave the volume of your speakers turned way up, you should hear a "pop" as the circuitry is powered off. Then, playing another sound will recreate the burst.
I haven't been able to hear these sounds with internal speakers, either on the Mini or iMac. But the problem still exists, and it is detectable... if you know what you are looking for.
The burst of the audio circuitry turning on also causes a delay in the audio. The delay is a noticeable fraction of a second, an it can easily be detected if you have a repeatable source of sound. I like Terminal.app, because I use that application all day, every day. Here is how you can check to see if you are also subject to the audio problems:
1. Start Terminal.app (in the /Applications/Utilities directory).
2. Wait one minute for the audio circuitry to shut down.
3. Without typing anything else, very quickly strike and release the Backspace key.
4. If you pressed the key all the way, the program should have caused a beep. However, if the audio circuitry goes to sleep, the beep should occur after you have moved your hand off the key. This is because the circuitry takes time to power itself on before playing the sound.
5. Now, quickly strike the Backspace key again. You should notice that the sound is produced immediately as you hit the key, without the delay you just witnessed.
6. Strike the Backspace key repeatedly, to confirm that there is no audio delay. Do this about once every second or two. If you press the key too rapidly, not all of the presses will produce sounds... this behavior is not related to the issue we are testing.
7. Wait another minute for the audio circuitry to shut down, and strike the Backspace key once more. You should again observe a delay between your strike and the sound production.
If you witness delays like this, your audio circuitry is also going to sleep, and you are having the same audio problems as the rest of us. However, either because you are using internal speakers, or because your external speakers don't have the appropriate response, you aren't hearing the same bursts and pops as the rest of us.
Please try this test, and report here. I want to build a list of people who previously couldn't hear the sounds, but still have the delay. This might give us a better picture of the scope of the problem.

Re: 10.4.10 Audio Popping Issues: Information Check with Internal Speakers
Your analysis of what is happening is right on.
The problem on my Intel Mac mini with external Klipsch speakers (two mid-range/high and a subwoofer) is REAL obvious as the system emits a hum like a Spinal Tap amplifier turned up to #11 when 10.4.10 powers down the audio circuitry
Then, if I play a song in iTunes, it first pops and the hum disappears right before playing.
Quite annoying.
Here's what I sent to Apple tech support:
Guys/Gals (OS X Engineers):
Concerning the Snap, Crackle Pop Audio problem in the 10.4.10 update:
Please. Just do the right thing and fix the audio.
There is no need to power cycle the audio subsystem to save .0005 amps on your laptops.
And then to make your Mac mini/iMac/other desktop users have to put up with it when using AC power is ridiculous.
Put the audio subsystem back like it was in 10.4.9 and let the laptop battery freaks looking for mini-amp savings get a "work-a-round".
Crikey!
Mac Mini 1.83 Ghz Intel Core Duo 1GB RAM Mac OS X (10.4.9) 20 Years of Microsoft-Induced Grey Hair

Internal speakers are gone.

My internal speakers are gone. They just disappeared. When I go to my sound preferences, I can only select bluetooth and digital line out--which I don't remember being there before.

Have you tried SMC and PRAM resets?
http://support.apple.com/kb/HT3964
http://support.apple.com/kb/ht1379
Ciao.

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Hello,
Yesterday I use my headphones to listen music from my mac. Today after I turn on my notebook I saw that my sound icon is grey and when I try to change the level of the sound nothing happens. When I put again my headphones the sound works.
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I got the solution !
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The boot chime ALWAYS comes from internal speakers, no matter what settings are used in Sound preferences panel. (The chime can be muted, but' that's it)
Previous Macs (at least G4s) with the exact same OS version allowed getting a beautiful, deep and soothing sound at startup time, from externals. Why would this feature have disappeared?
People at the store and at Apple that I've talked to only said :it's normal".
Anyone can help me with this? I find it strange that this would be "normal". Even Windows can have its boot chime presented through externals.
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Yes, it is normal. You might want to try using the front headphone port instead. I believe it'll come out via that port though I'm not entirely sure.

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Hi Nancy-
I have a 17" G4 1.5MHz aluminum PowerBook, 10.4.8, with no audio, too. Volume = max, System Prefs sound-in = internal mic, out = internal spkrs. Microphone shows no input. Connecting an iMic (w/external microphone) via USB causes sound-in pane to recognize the USB device, and both line-in and internal mic show a very regular pulse (about 1-2 per second) but no sign of any real audio from mic. Disconnecting the USB device, closing then reopening System Prefs sound pane, causes pulse to disappear.
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-------------How do I give Kudos? | How do I mark a post as Solved? --------------------------------------------------------

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Try the following:
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