> > > > The alsa-info.sh log from the mac mini (the usb headset will not stay connected on the dell e6220 long enough for it to work) is at: > > > > > > <a href="http://www.alsa-project.org/db/?f=5e7f45089ce82985c003fa2608bed82726ebbdf6">http://www.alsa-project.org/db/?f=5e7f45089ce82985c003fa2608bed82726ebbdf6</a> > > > > you need to find out the usb problem in system log of your e6220 > > OK - I'll take a look. Note that the usb headset works fine on this machine under win7 <a href="https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1071854">https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1071854</a> usb_set_interface failed (-32) > > > how many audio jacks do your macmini have ? > > > > seem only line in support jack detect, internal mic support balanced but > > ext mic does not support jack detect > > There are two audio jacks: > > 1. An analogue headset/external speakers jack. Note that in order for the external speakers to work, I need to use HDA Analyser to change the settings otherwise things remain stuck on the internal speaker. I did not try an analogue headset. > > 2. An analogue line-in jack. I tried this with a powered condenser microphone - I can hear a recording, but the level is too low for practical use. > > I'm not sure there is an internal microphone connected - shouting at the mac mini box does not produce an audible recording :P <a href="http://www.apple.com/mac-mini/specs.html">http://www.apple.com/mac-mini/specs.html</a> Audio line in minijack (digital/analog) Audio line out/headphone minijack (digital/analog) HDMI port supports multichannel audio output Support for Apple iPhone headset with microphone Built-in speaker