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I didn't know that. Since I have Cinema Display with DisplayPort, could I do MacBook Air > Thunderbolt > Cinema Display?
by gaborcselle 14y ago
I didn't know that.
Since I have Cinema Display with DisplayPort, could I do MacBook Air > Thunderbolt > Cinema Display?
- jpxxx 14y agoNo sir. For (presumably) dumb (presumably) Apple Reasons, a non-Thunderbolt display cannot be involved in that chain at all. I'm not sure why. This is not gospel, by the way - I don't know if this was a limitation of the prior MBAir or else the signalling scheme in play. 1-800-APL-CARE can clarify.
- veemjeem 14y agoAs I mentioned in another post, non-thunderbolt displays cannot interpret packet data. When you use a dvi to thunderbolt adapter, it's simply translating the pins, not decoding packets. Your laptop's thunderbolt chip would realize you're connecting a normal display and send the usual display signals rather than packet data. If you put this normal display at the end of a thunderbolt daisy chain, it would be the responsibility of the last device on the chain to convert the video packets into signals, something I doubt intel would put into their specs, requiring all devices that implement lightpeak to also decode video. I think adapters are sometimes bad in this regard, people will think if the adapter fits, it should work the way they think it should. Back in the day when parallel ports and scsi used the same 25pin connectors, lots of people destroyed devices thinking they could hook their hard drives to their parallel port.
- wmf 14y agoNo, but there's been some discussion at Ars that you can do MacBook Air > Thunderbolt Display > non-display device > Cinema Display.