Summary question: I want to know whether Mavericks has introduced the ability to sleep one display while having another active. My 2011 mac mini is attached to a desk monitor as well as to my tv and stereo. I am considering purchasing a new receiver to pass audio in HDMI to enjoy higher bitstream audio codecssuch as DTS-HDbeyond toslink's capacity. Yet my understanding is that HDMI audio is cut with 'display sleep.' This is problematic because I often listen to music with the screens off and love my 'sleep display' hot corner. I know toslink is high bandwidth. I would also like to have the audio go through HDMI to negate audio sync issues with two longer cables. Can one display (in this case, a receiver) be set to always have a signal, and have 'display sleep' only affect the desk monitor? Does the program 'switchresx' provide this capability? Can I go ahead and get a newer receiver assured that Mavericks' multiple display support includes an independent 'display sleep' function? Thank you, anyone who has a crystal ball.