Question: No more Target Display??
Does anyone know if target display mode was disengaged for 2011 - 2013 iMacs? Target display does not work with Thunderbolt to Thunderbolt where in the past it used to. I've tried looking at the system report and when selecting THUNDERBOLT, both ports are active and working. I say working because they will accept Thunderbolt drives but when plugged into another iMac, NO DEVICE CONNECTED. Nothing. Zip. Nada.
It ***** if so. That was a huge bonus to utilizing both my 2012 and 2013 iMacs.
iMac, macOS High Sierra (10.13.3)