> Not all combination of Apple devices can be used in target display mode. Target display mode is dead, isn’t it? https://support.apple.com/en-us/HT204592 htt

> Not all combination of Apple devices can be used in target display mode. Target display mode is dead, isn’t it? https://support.apple.com/en-us/HT204592 https://support.apple.com/en-us/HT204592: “Target display mode is a feature available with certain older Mac models. The following older iMac models can be used as an external display when plugged into another older Mac model. iMac models introduced in 2011, 2012, 2013, and mid 2014”