how do I turn off optical digital-out port?

Well subsequent to my earlier comments I find that the system reverts to no internal speakers and by running iTunes and plugging in headphones, waiting till I hear through them, and then unplugging them the internal speakers re-appear! I guess a patch is imminent.

When I saw your comment I was like: I should try this, but I am sure it won't work. i thought wrong!! thank you so much!!!

Hello there

somedays ago my optical output in my Macbook stopped working. Now when I plug an optical cable and then press the keys for turning down or up the volume I have the prohibit symbol on the screen telling me that this action is not allow.

with an analogue audio cable I have no issue.

do you know what’s the problem?

my macbook is a mid 2010 running the latest OS.

thanks in advance for your help.

Regards

Tried (on my iMac) plugging in/unplugging headphones and it didn't work. I just stuck a long toothpick in the headphone jack on my iMac and it fixed it right away. The red light turned off and the sound started again.

It´s crazy but I actually tried it and it worked THANKS ... last time this happened I had to take it to tec support 😁

legend! would love to be able to thank you with a 6 pack of beers, but an online message will have to do

I just do the same thing, plug and unplug the headphone and success! 😮 Thanks everyone!

holy crap, it worked. THANK YOU. That was BAFFLING! 🙂

Head phone jack works!

1] Open System Preferences

2] Click on 'Sound' then go to 'Output' tab on the top.

3] You will see device list, assuming you see 'Optical Digital-Out port' under 'Type' column.

4] Insert head phone in your device (I used my iPhone headphones)

5] The out put type will change to 'Headphone Port'

6] Play some audio file to check if it is playing. (Mine was playing well)

7] Pull out the jack

8] Now you see (hopefully) "Built In'

9] Thats it!

This worked for me. Hope it works for you as well.

Which Mac(s) did you find this worked on? Which operating systems?

Hi

the in and out with a speaker jack worked for me. Took two or three times..

thanks all