iMac 24", two extra monitors?

rylin

macrumors 6502
Original poster
Aug 18, 2006
351
0
Hi,

I've got two 24" dell monitors at home (2405fpw), and I'm used to running on two monitors.

That said, I'm in love with my Mac Pro at work, and figured - what the hell, I might as well get an iMac for the home.

I know I can run 2x24" on a dual-link DVI connection, but I've been unable to find out whether the 24" iMac's DVI port is dual-link or plain old.
(Yes, the idea here is to run 3x24" ;-) ).

Anyone?
 

pknz

macrumors 68020
Mar 22, 2005
2,479
1
NZ
Why don't you just get a Mac Pro at home?

As far as I know the iMac only can support one extra monitor.
 

elisha cuthbert

macrumors 6502a
Feb 25, 2006
665
0
Melbourne
rylin said:
Hi,

I've got two 24" dell monitors at home (2405fpw), and I'm used to running on two monitors.

That said, I'm in love with my Mac Pro at work, and figured - what the hell, I might as well get an iMac for the home.

I know I can run 2x24" on a dual-link DVI connection, but I've been unable to find out whether the 24" iMac's DVI port is dual-link or plain old.
(Yes, the idea here is to run 3x24" ;-) ).

Anyone?
that sounds like an awesome idea, if you ever get bored of it I will gladly take the setup off you hands free of charge
 

ViveLeLivre

macrumors regular
Sep 24, 2006
147
0
rylin said:
I know I can run 2x24" on a dual-link DVI connection, but I've been unable to find out whether the 24" iMac's DVI port is dual-link or plain old.
(Yes, the idea here is to run 3x24" ;-) ).

Anyone?
It's dual link. I'll try to find the specs for you.
 

ViveLeLivre

macrumors regular
Sep 24, 2006
147
0
Sorry, I misread the supported external display resolutions for the iMac 24"... I guess I don't know what I'm talking about.

Nvidia's site doesn't mention single or dual-link on the iMac, although they state that 7300 GT (256mb) card for the Pro supports both dual and single.

Apple's Cinema Display page lists iMac support for the 30" display as "N/A", but does that apply to the 24" iMac with a 7600 GT?


Edit: Looks like the Cinema Display page has been updated recently, but it doesn't list either the 7300 or the 7600 as supported for the 30" dual-link display. Bummer.
 

robbieduncan

Moderator emeritus
Jul 24, 2002
24,638
61
Harrogate
rylin said:
I know I can run 2x24" on a dual-link DVI connection, but I've been unable to find out whether the 24" iMac's DVI port is dual-link or plain old.
(Yes, the idea here is to run 3x24" ;-) ).
How? Dual-Link is not two ports (or two frame buffers when it comes down to it). It's a single port with two TDMS transponders allowing for two streams of data to feed a single screen. If you were to split the signal you'd get the even lines on one screen and the odd ones on another!
 

vincebio

macrumors 6502a
Jun 27, 2005
787
42
Glasgow
sorry but you cannot do this...

dual link dos not mean you can run 2 screens, its point is to run a huge screen by running lines seperately.

imac is single link DVI in any case. why would they put a dual link DVI port on a consumer desktop?, albit a fecking huge one :D
 

ViveLeLivre

macrumors regular
Sep 24, 2006
147
0
vincebio said:
sorry but you cannot do this...

dual link dos not mean you can run 2 screens, its point is to run a huge screen by running lines seperately.

imac is single link DVI in any case. why would they put a dual link DVI port on a consumer desktop?, albit a fecking huge one :D
For 1080p video to an HDTV? That's what I'd use it for. DVI --> HDMI.
 

rogersmj

macrumors 68020
Sep 10, 2006
2,158
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Indianapolis, IN
Yeah, as already stated dual link is a way of driving a single display with two data streams. It has nothing to do with running two displays. You've never been able to run more than one external monitor on an iMac.

I'll take your extra 24" off your hands... :D
 

nagromme

macrumors G5
May 2, 2002
12,546
1,186
ViveLeLivre said:
For 1080p video to an HDTV? That's what I'd use it for. DVI --> HDMI.
You can already do that from an iMac... to ONE HDTV :) 1920x1280 is the largest digital display an iMac can drive (and it can drive two of them counting its own)--and that is higher than HD 1080p res.
 

Chrispy

macrumors 68020
Dec 27, 2004
2,126
1
Indiana
Just get a macpro for home... if you get the dual (or should I say quad) 2.0 model then it won't cost you much more than the iMac anyways. You already have the monitors so why not?
 

rylin

macrumors 6502
Original poster
Aug 18, 2006
351
0
robbieduncan said:
How? Dual-Link is not two ports (or two frame buffers when it comes down to it). It's a single port with two TDMS transponders allowing for two streams of data to feed a single screen. If you were to split the signal you'd get the even lines on one screen and the odd ones on another!
Are you certain?
I know my old Dell at the office (with a x600) had a splitter cable; effectively letting me plug in two 24" monitors running 1920x1200 each on one dual link port.
 

paradillon

macrumors member
Jan 1, 2004
83
0
I know my old Dell at the office (with a x600) had a splitter cable; effectively letting me plug in two 24" monitors running 1920x1200 each on one dual link port.
Were you running a third screen with your Dell setup?

I don't think you can over look that the imac is already driving it's own screen. :confused: :)
 

rylin

macrumors 6502
Original poster
Aug 18, 2006
351
0
paradillon said:
Were you running a third screen with your Dell setup?

I don't think you can over look that the imac is already driving it's own screen. :confused: :)
Nope, I was only running two screens on the Dell.
That said, that was two screens over one dual-link port; which is why I'm curious as to the iMac :)

I'll probably go to our local retailer (or just wait for three weeks for when I'm visiting the Regent Street Apple Store :)) and see what they say, or see if they can demo it ;-)

As for the reason as to why I want to get the iMac instead of the Mac Pro; well, I'm trying to get a less cluttered desk - and as Apple's question is "Where did the computer go?", I want others to ask that as well ;-)
 

nagromme

macrumors G5
May 2, 2002
12,546
1,186
The iMac doesn't have a dual-link port: if it did, as I understand it, then it could drive a 30" display. But it can't drive more than 1920x1200 according to the specs. So--not dual-link.
 

robbieduncan

Moderator emeritus
Jul 24, 2002
24,638
61
Harrogate
rylin said:
Are you certain?
I know my old Dell at the office (with a x600) had a splitter cable; effectively letting me plug in two 24" monitors running 1920x1200 each on one dual link port.
Custom proprietary port. We have HPs at work with Matrox cards that do the same. That's not a dual link port, rather a proprietary higher density connector. It has more pins than a DVI port. Dual-Link DVI ports look just like normal ones but can, if required, send twice as much data.
 

rogersmj

macrumors 68020
Sep 10, 2006
2,158
0
Indianapolis, IN
rylin said:
Are you certain?
I know my old Dell at the office (with a x600) had a splitter cable; effectively letting me plug in two 24" monitors running 1920x1200 each on one dual link port.
That's not dual-link. It's a custom port a lot of the OEMs use for some reason I can't even begin to fathom. All of our Dells at work from the 2003-2005 timeframe have this port -- it looks like a DVI one, but is a little wider. We too use the splitter "pigtail" to connect monitors. A regular DVI port -- even a dual-link one -- cannot be split into two monitors.

The iMac can only have one external display. Period.
 

eyemacg5

macrumors 6502
Sep 14, 2006
405
0
Derbyshire, England
The imac can only drive one extra screen, we've figured that out.

BUT and this is a abig but, if you have a spare pc or mac laying around connect that other display and try this.


Link


Hope This Helps



-Jake