Query failed: connection to localhost:9312 failed (errno=111, msg=Connection refused). Old Desktop - Genius Bar Discussions on AppleInsider Forums Toggle navigation All Forums Recent Posts Sign In Old Desktop sharmann Posted: May 13, 2018 10:41PM in Genius Bar Is there someway that I can use my old desktop (2006) as a monitor for my newer laptop (2013)?ThanksSharmann Comments Reply 1 of 2 tallest skil Posts: 43,399member May 13, 2018 10:49PM Only the 2009-2014 iMacs could use Target Display Mode (an easy way to do this), but it’s… sort of possible otherwise. Reply 2 of 2 mattinoz Posts: 1,519member May 15, 2018 6:08AM If your adventurous with a soldering iron and don't mind mucking around inside the machine there are guides out there to rewire older iMac's and make them into DVI port screens.Haven't done it myself, trying to get a younger relative who has better hands to have a go at it for me. Tallest Skills option works OK if you don't need the Ethernet port for anything else and has a much lower barrier. Sign In or Register to comment.