Power Mac G5 front panel headphone jack

[_sergey_]

As far as I know when I plug the headphones in the front panel jack of my Power Mac G5, the speakers plugged in the back are supposed to go off. However this does not happen.

When I plug the headphones the sound is in both the speakers and the headphones. When plugging and unplugging there's a delay (less than a second) when sound is neither in the speakers nor in the headphones.

Is it a hardware problem or should I just set something up properly?

P.S.
The Mac is just two days old.

 

[arri]

..don't have a g5 here now,
but check systemprefs>audio
and "audiomidi setup" (utitlities)

if it's a 'properly setup' thing, you should find it there

 

[arri]

..don't have a g5 here now,
but check systemprefs>audio
and "audio-midi setup" (utitlities)

if it's a 'properly setup' thing, you should find it there

 

[ElDiabloConCaca]

http://developer.apple.com/document...G5_SP/3Input-Output/chapter_4_section_11.html

By default, when components are plugged into the headphone jack or the rear line-out, the sound system mutes the internal speaker.

The headphones, rear line-out jack, and S/PDIF output are only muted when selected in the System Preferences. Muting and sound options are set in System Preferences:Sound:Output. Selecting the “Digital Output” checkbox allows operation of the analog and digital output ports when headphones are attached, enabling monitoring of the optical digital transport.