30" Cinema HD Display power switch

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Level 1

6 points

30" Cinema HD Display power switch

I previously posted this on the wrong Forum. So now that I'm on the correct forum, here's my question--

I just bought a 30" Cinema HD to replace my 17" Studio Display. On the Studio Display I could touch the power button on the display's front bezel to Power ON the computer and also to put it (and the display) to sleep. On the Cinema HD Display I can touch the power button to put the computer to sleep, restart, or shutdown. But I can't use it to power ON the computer. Is that the way it is supposed to work? Is pressing the power button on the front of the computer the only way to turn on the computer?

G5, dual2.0 Mac OS X (10.4.1)

Posted on Mar 13, 2006 11:05 PM

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Answer 1

Mar 14, 2006 2:53 AM in response to Bruce Butler

Are you sure the old dispays were DVI (screw knobs), not ADC (clips at each end of the connector)?

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Answer 2

Bruce Butler Author

Level 1

6 points

Mar 14, 2006 9:39 AM in response to Malcolm Rayfield

Oh man, do I feel like a fool. I went and checked my old monitors and, Yes, you are absolutely correct! After all these years, I thought they were DVI. Thanks for the info, Malcolm.

So that's the reason, then. The DVI connections don't carry the power control signal for the computer? I wonder why they did that? It was so convenient before to never have to use the power switch on the computer itself. And now, you're able to turn off the monitor and leave the computer fired up? I guess that's a "good thing" in a way. You won't waste hours of screen time while the computer's doing some rendering or other overnight work.

Thanks for your help, Malcolm.

Bruce

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Answer 3

Phil Ta

Level 6

10,400 points

Mar 14, 2006 12:24 PM in response to Bruce Butler

ADC was a proprietary Apple connector that carried the video signal along with USB and power for the display. DVI is a standard connector, and standards tend to be better.

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