Q: Original ADC 22" Cinema Display Works w/new MBP, doesn't with older one
I have two MacBook Pros. One is from late 2007. Core 2 Duo, max 3 gigs of RAM, non-unibody. The second is from late 2009. Unibody, max 8 gigs RAM, etc.
I also have two Apple Cinema Displays. One is 22", ADC. The other is 23", also ADC. I have ADC->DVI adaptors for both.
When I plug either of the two MBPs into my 23" display, it works perfectly. Auto-detects, screen flashes and resizes and wiggles a bit and everything just works exactly as expected.
When I plug the newer (2009) MacBook Pro into the 22" display, it also works perfectly.
When I plug the older (2007) MacBook Pro into the 22" display, nothing happens. No flicker, no screen shift, no work. No lines written to the system.log file, no indication that the laptop even notices that it's plugged in.
Here is a list of troubleshooting steps I have tried. (Please don't ask me to try any of these.)
* As noted above, I tried the 22" display with the newer laptop. Works fine. |
(The problem follows the LCD, not the adaptor.) Also, just to add to the mix, I have tried plugging ANOTHER vintage 2007 MacBook Pro into this 22" display, and it also displayed the same symptoms: absolutely did not recognize the display, no matter what I did.
I find this really baffling. Why (HOW?) would the original Apple Cinema Display be incompatible with the 2007 MacBook Pro? Or what defect would make the Cinema Display not work with the 2007 MacBook Pro, but work fine with the 2009 MacBook Pro? The only difference I know of aside from a different video chip is the fact that the newer MBP requires an extra adaptor to get from DVI to the mini display port thingie.
MacBook Pro, Mac OS X (10.6.7), OCZ Vertex 3 as main drive
Posted on Apr 7, 2012 10:35 PM