on my ibook g3 500 (dual usb - uses tumbler chips) headphone detection works fine. but if you leave them in when the machine goes to sleep, when it comes back awake the sound is really quiet, unplug and replug headphones and were back listening to mp3s etc. can anyone else reproduce? 2.6.12-1-powerpc Dean -- WWW: http://dean.bong.com.au LAN: http://www.bong.com.au EMAIL: dean@bong.com.au or djzort@bong.com.au ICQ: 16867613