Mini DisplayPort computer port to a DVI display. I can confirm that Mini DisplayPort to DVI converter works ONLY from a To connect a computer with a DVI/VGA port to a Thunderbolt display (from this thread): You can't use Mini DisplayPort to DVI or VGA adaptors: The steps to configure and enable Target Display mode are very similar.). (As a side note: Older iMacs with Mini DisplayPort also support Target Display Mode. Press ⌘ F2 on the keyboard of the iMac.Make sure the iMac and the primary computer are turned on and awake.Connect the Thunderbolt cable to the Thunderbolt ports on each computer.If you happen to own a laptop with a Thunderbolt port follow these simple steps to extend your display (Thunderbolt to Thunderbolt cable required) (from KB PH4469): NOTE: This won't work for iMac (Retina 5K, 27-inch, Late 2014) and later iMac models as they don't support Target Display Mode. Target Display Mode lets you use your iMac as the external display forĪnother, “primary” computer. Thunderbolt-equipped iMacs prior to iMac (Retina 5K, 27-inch, Late 2014) (see this document), like your iMac (Mid 2011), support Target Display mode:

Mac mini mid 2010 dual display