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IMac Intel :: Unable To Get Second Monitor Detection And Resolution

I bought a Viewsonic 22" monitor to use along side my iMac when using CS4 and I do a lot of photography. Now the problem is that sometimes my iMac recognizes it as VA2213w and other times it see it as VGA monitor. When is sees it as the VGA monitor the resolution changes a bit, even though it has it on its highest setting 1920x1080 @60hz. I'm using a mini dvi to VGA adaptor as the Viewsonic only has a VGA plug. Could this be the issue? As I have read a lot of the problems here and they seem to be all pointing to the adaptor. If so then why does my iMac sometimes see it as VA2213w monitor and then on other times as VGA. I'm doing nothing to the display other than switching on in the morning.

iMac 24" 3.06Ghz
Mac OS X (10.5.8)

View 8 Replies (Posted: Jul 25, 2010)

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