Hi,
I am having a persistant problem with audio on my MBP - I've read just about every thread I can find on this, and haven't found a solution that works.
Note: This is not the problem of pulling out headphones and having the red light in the headphone jack.
Also: resetting PRAM has no effect.
The symptoms:
1. Audio in Apple apps doesn't work:
- Quicktime doesn't even open anymore (throws this error: "XXX could not be opened. An unknown error occurred (-101)") This could be unrelated, but I suspect it has something to do with the same problem causing the audio fault (though I may be wrong).
- iTunes doesn't play at all. Everything else about it works, but if I press play, nothing happens, the time-slider doesn't advance at all (it's not that it's playing and I can't hear it, iTunes won't even play)
- Final Cut won't output audio either (this is the real problem, as I am an editor on a deadline, who just happens to be in the mountains of Bolivia, so no chance of a Genius bar anywhere nearby...)
2. Audio plays fine in VLC
- I can open audio and video files in VLC and watch them with sound.
3. The startup sound for the computer works
4. The audio icon on the menu bar is greyed out as if muted, and I cannot drag to control the volume. If I try to change the audio with function/F-keys, I get a muted image display.
5. If I go to Audio-Midi Setup, and go to Built-in Output, and configure the speakers, both speakers readily produce the white noise test to show they are working (which is strange).
6. If I go to Sound in System Preferences, it lists Internal Speakers under 'Name' and 'Built-in' under 'Type', but has nothing under 'Settings for the selected device' (I don't know if it should or not anyway). The Output volume shows it is full, but the 'Mute' checkbox next to it is ticked, but also greyed out and untouchable.
7. Sometimes when I boot up, the audio icon in the menu bar comes on as normal, but a few seconds later, reverts to the greyed out mode.
8. Every so often, and for no apparent reason, the audio will work again. Maybe for a day, maybe for an hour. And then it just doesn't.
ANY and ALL help on this much appreciated. I can't work in this situation, and if I can't work, I'm screwed!
As I said before, there is no red light in the headphone socket, and resetting the PRAM does nothing (these are the two most cited solutions for similar problems I have found).
THANKS!
S
I am having a persistant problem with audio on my MBP - I've read just about every thread I can find on this, and haven't found a solution that works.
Note: This is not the problem of pulling out headphones and having the red light in the headphone jack.
Also: resetting PRAM has no effect.
The symptoms:
1. Audio in Apple apps doesn't work:
- Quicktime doesn't even open anymore (throws this error: "XXX could not be opened. An unknown error occurred (-101)") This could be unrelated, but I suspect it has something to do with the same problem causing the audio fault (though I may be wrong).
- iTunes doesn't play at all. Everything else about it works, but if I press play, nothing happens, the time-slider doesn't advance at all (it's not that it's playing and I can't hear it, iTunes won't even play)
- Final Cut won't output audio either (this is the real problem, as I am an editor on a deadline, who just happens to be in the mountains of Bolivia, so no chance of a Genius bar anywhere nearby...)
2. Audio plays fine in VLC
- I can open audio and video files in VLC and watch them with sound.
3. The startup sound for the computer works
4. The audio icon on the menu bar is greyed out as if muted, and I cannot drag to control the volume. If I try to change the audio with function/F-keys, I get a muted image display.
5. If I go to Audio-Midi Setup, and go to Built-in Output, and configure the speakers, both speakers readily produce the white noise test to show they are working (which is strange).
6. If I go to Sound in System Preferences, it lists Internal Speakers under 'Name' and 'Built-in' under 'Type', but has nothing under 'Settings for the selected device' (I don't know if it should or not anyway). The Output volume shows it is full, but the 'Mute' checkbox next to it is ticked, but also greyed out and untouchable.
7. Sometimes when I boot up, the audio icon in the menu bar comes on as normal, but a few seconds later, reverts to the greyed out mode.
8. Every so often, and for no apparent reason, the audio will work again. Maybe for a day, maybe for an hour. And then it just doesn't.
ANY and ALL help on this much appreciated. I can't work in this situation, and if I can't work, I'm screwed!
As I said before, there is no red light in the headphone socket, and resetting the PRAM does nothing (these are the two most cited solutions for similar problems I have found).
THANKS!
S
Last edited:
