It has been very long time, I am experiencing this issue. I followed all the suggestions from different discussions but no success. I tried Clearing the PVRAM, starting the MBP in safe mode, restarting the machine etc.
I would appreciate if some specialist from Apple can answer my queries.
Problem: I am able to hear the sound when a Headphone is plugged in sound jack of my MBP. but when I remove my headphone, the sound jack emits sharp red light and i am not able to hear any sound from my MBP.
1. If this is a genuine issue why not apple looks into it?
I suspect this to be a hardware or an software issue.
Question to Apple Macbook Developer:
1. When does the sound jack displays the red light?
2. What is the condition?
3. Which is the small switch or button that makes it on?
I see that the solution can be easy if apple can tell us what is the condition when sound jack emits red light and how?