headphones: back jack yes, front jack no; What secret?
When i plug headphones into the rear jack, they work.
When i plug headphones into the front jack, they do not.
I've tried every combo in Sys Prefs>sounds to no avail.
I've never even used that front jack before.
2009 mac pro, mavericks
Thanks anyone !
Mac Pro (Early 2009), OS X Mountain Lion (10.8.2)