Mac OS forum


Use 27' iMac as monitor

by lesparapluies / September 17, 2012 10:01 AM PDT

I will shortly be replacing my "mirror-door" dual-boot G4 with a new 27-inch iMac. I've always used the G4 with the Apple 20-inch cinema display (it works perfectly well with both OS9 and OS X despite anything you've read to the contrary). I have a couple of programs which will only run in OS9 (must be native, not Classic) so I will keep the G4 for this purpose, but I don't have room for two displays. OK, here's the question - is there any way that the new 27-inch iMac can act as a monitor for the G4 running OS9 for the few occasions I will still need OS9? I know it can be used as a remote monitor for OS X using special adaptor cables...but OS9? Any information appreciated. Thanks

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All Answers

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Try this recent discussion.
by R. Proffitt Forum moderator / September 17, 2012 10:16 AM PDT
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by lesparapluies / September 17, 2012 7:08 PM PDT

Hello, thanks for your response. However, what I was asking was the reverse of what is featured in the link - I wish to use the 27" iMac as a monitor for an older computer, not to use an older computer as a second monitor for the iMac. Also, when I said "new iMac" it was maybe misleading - I'm intending to find one of the late 2009 / 2010 models which, according to various discussions, has video-in capabilities. My G4 has DVI and VGA outs, so it would need to from one of these to the MiniDisplay in, if I've got that right? Thanks

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We covered that in that discussion too.
by R. Proffitt Forum moderator / September 17, 2012 11:45 PM PDT
In reply to: Reply

Just thought I'd re-use the answers. From what I've seen, it is possible with VNC to get at the headless computer. So primary or second, same ideas, same apps.

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