Connecting a 2008 iMac to MacBook air as a monitor
is there such a thing as a cable with mini DVI port to Thunderbolt2 connectors?
is there such a thing as a cable with mini DVI port to Thunderbolt2 connectors?
2008 iMacs never supported Target Display Mode. See a list of supported model here:
Connecting a 2008 iMac to MacBook air as a monitor