No sound - silent imac

Question

Level 1

15 points

No sound - silent imac

Hi there,

This problem is really getting me down. My imac has no sound, here are the facts:

I get a chime on start up
There is no sound on any other accounts
In Sys Pref>Sound it reads no output devices found
If I use the volume keys a grey volume bar appears along with a zero symbol

I have run a permissions check etc...
Have not installed anything lately

Has anyone got any ideas why this is happening?

I may try a re-install of 10.5, but looking for a better fix?

Thanks

iMac G5 isight 1.9 PPC 1GBRAM, Mac OS X (10.5.4), IPT 16GB, Nano 4GB

Posted on Jul 31, 2008 2:15 PM

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Answer 1

Best reply

Baby-Boomer-USofA

Level 9

58,098 points

Jul 31, 2008 2:24 PM in response to AlexG5isight

A few things to try:

http://docs.info.apple.com/article.html?artnum=300832 Mac OS X: No audio from certain multimedia content

Trick/Tip: Open up GarageBand if installed then, open a program (optional).
Quit out of the GarageBand app.

"I have run a permissions check etc..."

Etc mean you also restarted after repairing permissions? Booted from your Leopard DVD & ran the repair disk/permissions option?

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Answer 2

AlexG5isight Author

Level 1

15 points

Jul 31, 2008 2:28 PM in response to Baby-Boomer-USofA

Thank you so much for your reply.

Tried garage band (5) and got "CORE AUDIO: selected driver not found (-10202)"

Permissions, well that is a good point, I need to do the boot up from my leopard DVD so thanks for the direction with that..doing it now.

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Answer 3

MGW

Level 7

27,041 points

Jul 31, 2008 2:48 PM in response to AlexG5isight

This might also be part of the problem:

+Your digital out has been turned on. You will also notice a red light in the hole when this happens. Use a plastic toothpick to reach into the hole and around the 3 o'clock position try flipping the switch. An alternate method that has worked for some people is to plug and unplug the earphones a few times. This sometimes resets the switch.+

+courtesy of First Magus+

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Answer 4

AlexG5isight Author

Level 1

15 points

Aug 1, 2008 11:10 AM in response to Baby-Boomer-USofA

Well not sure what fixed this but all is fine now.

I think it was the garage band trick that sorted it as I booted garage band, got the driver error, shut down for the night and rebooted the next day and all sound is now working...

So thanks Baby Boomer !!

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Answer 5

jfredh

Level 1

6 points

Aug 3, 2008 7:59 PM in response to AlexG5isight

I have been experiencing the same problem. It seems to occur randomly. I have been able to correct it by restarting the computer, except for one time when I had to restart it twice.

Fred H

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