Only audio output is Digital Out

My MBP has been connected to an external monitor and speakers for about a week (not unusual) and I just disconnected it and am using once again as a laptop. I noticed however, I can't adjust the volume, nothing comes out of the speakers and the only audio output device is Digital Out, no speakers.
How can I fix this?

David Allen4 wrote:
Have you checked out?
http://discussions.apple.com/thread.jspa?messageID=10792408&#10792408
Thanks for this. I had this issue with my MBP for the first time today and that forum thread helped out.
Jordan

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Internal speakers will not play, only audio choice is "digital out".

15 inch MacBook Pro. Internal speakers will not play. Output to headphone plug did work. Now I cannot insert headphones into socket, it seems to be too shallow. There is no red glow as mentioned in other posts. I had the red glow issue on an older MacBook and resolved it by inserting toothpick into socket and triggered switch. I have used command, option, r and p reset. Ideas?

That is what I thought as well. I am not able to check the same headphone jack I was using earlier today, but other 3.5 mil jacks dont fit. I will try again with the same one used earlier.
Would this also cause my internal speakers to not be recognized? I had a issue similar to this with my old macbook and was able to resolve it by flipping a switch in the output socket. Something to try? I would also assume that a bent contact or switch is not something an average joe could fix.
Thanks for your quick responses.
--David

When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

If you see a red light in the audio output port, then the internal switch is stuck. Insert the earphone plug a few times and see if you can trip the switch. If that fails, insert a cocktail stirrer and the like and jiggle it around inside. If that fails, take it to an Apple store and have the technicians at the genius bar do it for you.
Ciao.

Combined optical digital audio output/analog line out

Combined optical digital audio output/analog line out minijack on the new Mac Pro support 5.1?

Are you asking if it has that?
http://www.apple.com/mac-pro/specs/
says:
Combined optical digital audio output/analog line out minijack
Which means it does.
On all but the earlier Mac Pro models, this has been standard since the iMac G5.
Mac Pros earlier used SPDIF.
These are now mini-Toslink.

No sound only thing available is digital out

I have tryed reading different things in regards to having no sound on the i-mac and still on sound. Have rebooted.
Only thing available is Digital Out.
show volume in menu bar not working
mute button greyed out
Not much point in having i-tunes cant listen to them any way
Anyone no how to fix

The switch between analog and digital output takes place when you insert an optical connector in the output socket: there is a small mechanical switch which detects the type of plug. If this has jammed you will get stuck in optical output.
I asume you've tried simply rebooting - that's always the first step with minor failures. Try plugging a pair of headphones into the socket and see if they work. If so it's possible that the internal speakers will work when you unplug it. If not, poking around with a toothpick might work but it might equally well make matters worse or cause permanent damage so I don't recommend it - do it at your own risk.
Beyond that you will need to get it looked at by a service engineer.

Sound output only has option for Digital Out, no internal speakers, and no headphones.

I recently got a new 2012 Macbook Pro 15" and my sound output is not working correctly. The only option is Digital Out - Optical digital-out port. There is no intenral speakers option, nor is there a headphones option when I put them in. I am running Mountain Lion and unfortunately have tried looking up similar posts with no help. I have attempted to reboot the SMC and perhaps one other trick, but I have not had any luck. If anyone has any idea what I should do or if you need more information to make a diagnosis that would be great! To note, it worked fine when I first got the computer, but when I was messing around trying to hook my computer up to an HDTV (i have a thunderbolt HDMI cable that sends sound as well) I had a couple of problems (I think it was because it was a very old Vizio that did not support the HDMI) and perhaps some of the settings got changed on my computer. Anyways thanks in advance!

Hi,
That is good news! For some reason I only experienced that for a little while before it straightened out itself. But I know that was driving a lot of people crazy. Thanks for pointing out that 10.6.2 did the trick.

Can i generate PWM output from digital out of my PCI 7041 RT DAQ card?

I want to generate 4 PWMs using my PCI7041 card. I do have only 2 analog outputs and 2 counters to output my signal that's why I want to use digital out of my card for PWM. How can I do that? If there is any example then please let me guide that way.

Hello rajen,
There is a good link to PWM in LabVIEW using counters here.
As for using analog output, you will need to be able to continuously update your output waveform. I've attached a program that demonstrates this. Hope this info is helpful.
-Alan A.
Attachments:
Continuous_Analog_Out_Update.vi ‏139 KB

Z77a GD65 simultaneous audio output via digital and analog jack?

Hi,
Does anyone know if it is possible to use the digital audio spdif out, and the green 3,5mm jack (I use it for my headphones) at the same time?
When I use the digital out, and I run a 'test' with the analog out, I can hear the test signal so technically it should work.
However, I can't find the right settings to actually use both outputs (same source: for instance iTunes) at the same time.
Any advice? Thanks in advance!
Regards,
Jeroen

My old msi cuba 7301 from 2007 has an spdif output, and I was able to use this digital out together with the 3,5mm line out (which I used for my headphones) simultaneously. I understand what you're saying, but I'd say the user should decide in what way he/she wants to use the product . Technically, it shouldn't be a problem, since I can hit the 'test' button and hear the sounds through my headphones via 3,5mm stereo out, while playing music through the digital out.
Anyone from MSI who knows the answer? If it was possible in 2007...
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How do I change the audio output to digital optical for my home theater?

It's only using the hdmi for audio on the television..

Welcome to the Apple Community.
Unless the Apple TV is broken it always passes audio over the optical output.
Check your sound system is set up correctly, or try changing the Audio out and Dolby Digital settings on the Apple TV (settings > audio & video)

X-Fi Titanium only Mono output through Line-Out

Hi,
I have a problem with my x-fi titanium card. Since yesterday the output of the line-out is only mono. So the sound is always the same for right an left channel. I tried this in the mixer menue where you can test each channel if there is sound.
I already re-installed the newest drivers and changed PCI-E slot on my motherboard. The strange thing is in audio creation mode of the mixer I can see different amplitude for left and right channel of the output while testing.
After testing this whole thing I assume the amplifier of the card is broken and giving out the same signal to both channels.
Anymore suggestions?
regards,
Mik

are you using a mono cable with the card? Your card could very well be outputting stereo, and if you use a mono cable, you will end up with 1 channel sound.
Have you checked your mixer to make sure that you do not have the balance slider set to the left or right?

Sound output permanently digital out???

Hello there, folks
Yesterday I was at a shoot and brought my laptop just to check email periodically. That is truly all I did. And yet, at a certain point I went to play something out loud and when clicking the volume button it seems I can't control the sound, and I don't hear anything.
When I go into preferences it reads:
Digital Output - built in output
When I plug in headphones that changes to:
Headphones - built in output
and I can hear again.
Still, I have never used digital output. Why is that the new default? Where did my other option go? How can I fix this?
Thanks in advance for any enlightenment!
- Fredo

Plug your headphones in and out a couple of times. Check the jack for things like lint. There is a switch in the jack that detects the insertion of an optical cable which disables the built-in speakers. The switch is in the position that says an optical cable is plugged in even though it isn't. There is probably red light coming out of the jack.

Can I enable both a bluetooth audio device and digital-out port at the same time?

Hi! I just got a bluetooth speaker and want to use it at the same time as my audio-out port which drives speakers in another room. In preferences, the iMac wants me to choose one or the other... Is there a way to enable both at once?
Thanks!

You probably should not be using a keyboard bluetooth profile for a scanner, I am not a developer for apple so do not know the location for you to find out the correct profile you should be using for an input device that is not a keyboard. Sorry,
I am sure if you navigate the apple developer site you will probaly finmd what you're looking for.
https://developer.apple.com

Mac Mini Digital Audio Output

Hi,
My friend is trying to use the only audio output from the Mac Mini (1.42 GHz) as a digital out. He was under the impression that when you hook up the right cable (which has bought and we double checked-optical audio cable with Toslink adaptor.)
But when we go to pref. menu there is no selection for digital audio out except for the regular line out.
Any ideas or tricks to getting digital out on this Mini?
Thanks,
Babak

Does he have the 1.42ghz G4 Mini? If so, that model is not a digital/optical audio out jack, at least not the 1.42ghz model I have. Did not check to see if a later update prior to the intel switch added the port to that model. My 1.66Ghz intel mini has the digital/optical audio out. Tell your firend to check the manual that came with his mini, it will tell you if it is a digital/optical out port or not.

Audio port automatically changes to digital out

Hi,
I want to record audio from my MiniDisc unit to a 13" MacBook (Mac OS X 10.6.8) using GarageBand, Audacity or similar.
The MD unit is a Sony RH1, which has a Line out port. I connected this via a 3,5mm TRS connector to the combined Audio port of my MacBook.
The problem is that as soon as I plug in the other end of the 3,5mm cable into the Mac's Audio port, the computer's settings switch automatically to "Use audio port for digital out". I cannot choose to use it for input anymore. Using a Mini-TOSLINK cable instead didn't solve the problem.
How can I use the Line-in option of the MacBook to record audio in real-time?
Thanks in advance!

Talked to Tech Support about this when my machine locked up in this same fashion. There's a little "door" inside the headphone jack that can get stuck in the open position and keep the audio from switching back to the internal speakers / stuck in the digital (optical) output position...
The solution: the iPick... It's a toothpick, but if you use it to poke around inside the headphone jack until the little door gets unstuck, it becomes an iPick, and a box of them are very expensive, but they come in lovely colors and are very intuitive to use...
I'm not kidding... Stick a toothpick (or other non-conductive small stick) in the headphone jack and joog it around until it releases the little door...

Audio output unavailable

MBP 2011 running Lion.
Have been suffering on various front since I upgraded (in reality it feels like more of a downgrade) to Lion.
Latest and most annoying problem is the fact that the only audio output I have available is Digital out.
Great if I want plug into my home HiFi, not so good for just about the other 90% of the time I need to hear anything from my MBP.
Has anyone else had this issue and found a workaround?
I think the biggest question really is why would Apple launch a product soo in need of work?
Many thanks for any help with this issue.

This problem actually has to do with more than waking-up issues. Sometimes the interface goes silent just when Logic is put in the background for awhile. Regarding the necessity for restarting-after-wake to keep things going, I can't recall ever having a problem similar to this since the days of OS9, and I work daily with Logic and many other audio apps. My firewire interfaces (Presonus and other) have been solidly reliable upon waking.

Only audio output is Digital Out

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