hdmiimacipadvideo-adapter
This is not a AirDisplay question, it's about the HDMI connection.
I don't have a TV. I use my main computer, a 27" iMac, for watching movies.
The iPad 2 has HDMI out and games can output to 1080p while using the iPad as a controller, as seen in the recent RealRacing HD announcement.
Does anybody know if it will be possible at all to use an iMac screen, and its mini display port, in place of HDMI out?
Displayport is the protocol for video over thunderbolt.
http://www.cablestogo.com/product/54179/hdmi-to-displayport-adapter-converter
Get the above converter and then connect the cables with whatever cheap adapters and cables are required to fit all the physical connections. All told, less than $200 of cables and adapters are needed to do what you ask.
Basically, you have a video capture station/tiny computer resampling the HDMI signal and re-encoding it into the DisplayPort format.
Some displays allow you to specify the DisplayPort version. If your display defaults to DisplayPort 1.1, changing it to DisplayPort 1.2 via the OSD might improve the DisplayPort connection.
Best Answer
Yes you can do it using an Active HDMI to MiniDisplay port adaptor like this but as you can see it's not cheap