Mac Pro 1.1 and missing sound.

[Muppetshow]

So, running 10.7.5 and suddenly realized that the sound is missing.

Volume grayed out, in sound settings input/output says "no output device found" and "no input device found".

Have repaired permissions, have reseted pRams and all the lot, have tried the toothpick trick etc...

There is a startup chime when booting up, there is no light in the jack, sounds work normally under bootcamp.

Anyone have pointers where to start?


The weird thing that I made clean drive, installed 10.9.2 in it and got it to work. But even under 10.9.2 I have no sound...

 

[Muppetshow]

Anyone?? Heeeelp...!

Like, what folders should I check for corrupted / missing files?
Been surffing the crap out of in the interwebs about this topic and
no dice. Does anyone have a file list what should be in the some audio folder for successful living?

Should I try on different forum in macrumors, any suggestions?


Edit : The 10.9.2 install was made on top of a clone (with CCC) of 10.7.5...so some crap has
apparently been carried on.

 

[haralds]

So, running 10.7.5 and suddenly realized that the sound is missing.

Volume grayed out, in sound settings input/output says "no output device found" and "no input device found".

Have repaired permissions, have reseted pRams and all the lot, have tried the toothpick trick etc...

There is a startup chime when booting up, there is no light in the jack, sounds work normally under bootcamp.

Anyone have pointers where to start?


The weird thing that I made clean drive, installed 10.9.2 in it and got it to work. But even under 10.9.2 I have no sound...

This might sound stupid, but did you go to the Sound Preference panel and check, what is selected there?

If not:
Do you see a hardware Audio device under the Audio section of the System Information. If Realtek or Intel High Definition Audio is there (I have a Mac Pro 5,1 here, so I am not sure, what is on the 1,1), then it is a driver problem. Reinstalling the OS should fix it. If there is nothing but other audio like AirPlay, USB Display Audio etc., then there is a hardware issue.

Since you stated that there is chime on start and there is audio in BootCamp, if the Sound Preferences are selected correctly and there is no sound, I would reinstall. It should not remove any of your settings and apps.

 

[westrock2000]

DO you see any of this under Preferences > Sound?

 

[Muppetshow]

Under System Information I see this.

Intel HighDef Audio

Audio : 892


Intel High Def Audio

Audio : 892

Headphone in..etc.

So I see the audio Twice.O
ne with only the Audio : 892 notion and one with the full list of outputs.


Under Preferences > System I see only :

- No output devices found
- No input devices found

 

[haralds]

So, running 10.7.5 and suddenly realized that the sound is missing.

Volume grayed out, in sound settings input/output says "no output device found" and "no input device found".

Have repaired permissions, have reseted pRams and all the lot, have tried the toothpick trick etc...

There is a startup chime when booting up, there is no light in the jack, sounds work normally under bootcamp.

Anyone have pointers where to start?


The weird thing that I made clean drive, installed 10.9.2 in it and got it to work. But even under 10.9.2 I have no sound...

Have you tried an SMC reset?