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Audio output disappears! OS 10.5.8

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Alan LangdonAudio output disappears! OS 10.5.8
by on Oct 19, 2009 at 2:54:42 pm

Hardware: Power PC G4 (laptop) 1.67 GHZ 1Gb DDR SDRAM
OS: Mac OS 10.5.8
Quicktime: 7.6.4 PRO

A friend is running the system above on his laptop, which originally came with a lower OS version. What is happening is that often the audio output "disappears", so when you try to raise or lower the volume via keyboard, there is a "prohibited" sign and you cannot hear any audio or adjust volume. The System Preferences - Audio window tells me there is no audio output device, not even the internal speakers!
Could this be due to a generational gap between the hardware (G4, etc) and the OS and Quicktime version installed after purchasing the used computer? Should I try to re-install Tiger or even Panther (the system it came with, I believe) and/or a lesser version of QT? This would imply possibly shifting down to an older version of FCP (currently 6.0.5), which is not a great piece of news, but...

Any info much appreciated!


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David HallRe: Audio output disappears! OS 10.5.8
by on Dec 1, 2009 at 8:53:20 pm

Alan, Before reinstalling anything, try putting a pair of headphones into the audio out port and see if you are able to control the audio. Sometimes the audio out port will fail on those older laptops and will think there is an output device plugged in when there is none. The upside on those old G4 PowerBooks is that Apple hadn't integrated the I/O board into the logic board yet, so its a much less expensive fix than the MacBooks and newer models. Let me know if this works for you.

David Hall
Service Manager
Zero One Media Center
Apple Certified Hardware Technician
Apple Product Specialist

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Anderson JonesRe: Audio output disappears! OS 10.5.8
by on Dec 5, 2009 at 7:48:20 pm

The same thing just happened to me - audio output vanishes with the new update 10.5.8 - if you figure anything out lemme know.

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Alan LangdonRe: Audio output disappears! OS 10.5.8
by on Dec 6, 2009 at 10:23:33 pm

Are you running this OS on a G4 laptop as well?
I ended up reversing back to Tiger and am still testing to see if the problem re-appears... Sometimes it wasn't there, sometimes it was, under Leopard...

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