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View Full Version : Is it possible to connect a ibook to a 20" cinema display?


domokun
Oct 7, 2004, 10:46 AM
I know that the ibooks come with a cable that will allow you to connect to a vga display but is it possible to connect to an apple cinema display w/ a dvi connector?

mklos
Oct 7, 2004, 11:18 AM
No its not possible. The iBook has a mini vga connector on it, not a mini DVI connector on it. And I don't know of any way to go from VGA to DVI. You can go from DVI to VGA, but not the other way around. If it is somehow possible, you're gonna see poor quality.

For about $200 more than the 14" iBook you can get a 12" PowerBook with has mini DVI out on it and that WILL work with Apple's new displays (excluding the 30" which requires an NVIDIA GeForce 6800 DDL).

jxyama
Oct 7, 2004, 11:42 AM
i think it's possible, but it's expensive to up-convert vga signal to dvi/adc. i know for sure there's a vga to adc converter but that costs a few hundred dollars... can't remember the company that makes it - griffen or something...

edesignuk
Oct 7, 2004, 12:08 PM
This (http://www.axiontech.com/prdt.php?item=10039) should work, or anything like it (this was just the first result from a quick google). You convert at the screen end rather than the laptop output end. Plug this in to the DVI port on the monitor, and then just plug your VGA cable in to it and you laptop port.

jxyama
Oct 7, 2004, 12:58 PM
not sure if it's so easy/cheap to convert vga to dvi... i know for a fact it's cheap and easy to convert dvi into vga...

but at such cheap price, it might be worth a try.

jeremy.king
Oct 7, 2004, 01:16 PM
This (http://www.axiontech.com/prdt.php?item=10039) should work, or anything like it (this was just the first result from a quick google). You convert at the screen end rather than the laptop output end. Plug this in to the DVI port on the monitor, and then just plug your VGA cable in to it and you laptop port.

That adapter is for hooking a VGA monitor to a DVI port on a computer. You would need a VGA male to DVI Female to hook a DVI monitor to a VGA port.

I did find this
http://www.lindy.com/us/productfolder/04/41223/index.php

but is the Apple LCD a digital only monitor? If so, then you would need one of those previously mentioned boxes.

edesignuk
Oct 7, 2004, 01:54 PM
That adapter is for hooking a VGA monitor to a DVI port on a computer. You would need a VGA male to DVI Female to hook a DVI monitor to a VGA port.ooooops! :o

locovaca
Oct 7, 2004, 02:01 PM
That adapter is for hooking a VGA monitor to a DVI port on a computer. You would need a VGA male to DVI Female to hook a DVI monitor to a VGA port.

I did find this
http://www.lindy.com/us/productfolder/04/41223/index.php

but is the Apple LCD a digital only monitor? If so, then you would need one of those previously mentioned boxes.

You hinted at it but didn't specifically state the real reason the original idea won't work. How those adaptors work is they take a DVI-A (analog) signal and just change the wiring to a VGA plug- there is no conversion. Obviously this only works with signals that are analog and outputs which are DVI-I (Digital/Analog) or DVI-A (analog). However, all LCD's I've ever seen only use the digital signal on the DVI cord (DVI-D, for those of you keeping track), and so this wouldn't work, as has been stated. You need an analog -> digital converter, which will not look very pretty...

QCassidy352
Oct 7, 2004, 02:21 PM
you'll also need the ibook spanning hack if you want the 20" to do anything other than mirror at 1024x768. Just something else to think about.

jxyama
Oct 7, 2004, 04:56 PM
finally found it, here's what you need. as i said before, it ain't cheap. ($300 at the "official" website.)

http://www.gefen.com/kvm/product.jsp?prod_id=1310

this wil take the vga from iBook and convert to dvi. they also make vga to adc converter if you want to use the prev. generation apple displays.

vga4life
Oct 7, 2004, 05:06 PM
Or...

You could just buy a nice non-apple LCD that already has a VGA port. Problem solved, and for a lot less money than the overpriced Apple display. I recommend the Samsung 213T. I also recommend powerbooks over ibooks, for a number of reasons, but that's another issue.

-vga4life

mklos
Oct 7, 2004, 05:39 PM
Or.....


You can just buy a 12" PowerBook with a mini DVI connector for $200 more than an iBook.

Problem solved! And no expensive poor quality adapters. You'll have a 100% digital connection unlike converting from vga to dvi which will NOT make it true digital.