Imac dual monitor

can i use my second imac as a dual monitor
"I have a 27" imac as my main computer. I also have an older 24" imac. Is there a way to use my older imac as a dual monitor, bypassing the computer"

Welcome to Apple Support Communities
Only the 27-inch iMac and iMacs with Thunderbolt can be used as external screens > http://support.apple.com/kb/PH11302
To use the 24-inch iMac as an external display, you can use an app like ScreenRecycler. That application uses the network to make the 24-inch iMac as an external screen

Similar Messages

IMac Dual Monitor, Mini-DP to DVI, Screen Blinking

2.4 Ghz Core 2 Duo, 4 GB Ram. ATI Radeon HD 2600 Pro graphics.
Been using Snow Leopard here at work, running dual monitors via Mini-DP to DVI cable. Never a problem previously.
Upgraded to Mavericks. Enjoying it. Until the 2nd monitor (Acer v223w) started intermittently blinking. Discovered I can trigger the blinking via the mail program on the second window - hiding and/or showing the info/mail activity left-side panel will cause the screen to blink.
Kinda befuddled. Any help?

I am having the excact same problem. With nearly if not an identicle system.
24" Mid 2007 iMac
Processor 2.8 GHz Intel Core 2 Duo
Memory 4 GB 667 MHz DDR2 SDRAM
Graphics ATI Radeon HD 2600 Pro 256 MB
Software OS X 10.9.2 (13C64)
Serial Number W87***B2ZCT
Display 1: Built-in iMac Display (1920 x 1200)
Display 2: ACER 23" Wide Screen AL2223W Display (1680 x 1050)
Since I updated to the latest version of mavericks the other night I have had frequent flickering and blacking out of my screen. It happens mostly when I mouse on or mouse off my dock menu, and open programs on the second monitor. There is also little yellow and organge flickers throughout the screen from time to time almost like an interference patter, generally 1px high and 20px wide with varying degress of static.
I have tried the following with no success:
- Reset my PRAM / NVRAM
- Reset my SMC
- Deleted com.apple display related files
- Used screenResX to try and find a different Display 2 options
- Lowered resolution of Display 2
This is extremely frustrating because I am a web designer and programmer, and having my 2nd monitor not functioning basically renders my work station useless for me.

24" iMac - Dual monitor calibration

Just curious...
I have a 24" iMac Core 2 Duo 2.16Ghz, I am thinking of attaching an extrenal monitor to the system (non-Apple) and also borrowing a friends monitor calibration unit.
I've never had an external hooked up before and before I go buying one... my question is...
If I have a dual monitor setup (non-mirrored) can I assign each monitor its own monitor colour profile? or would I only be able to pick one and it applied it to both?
Thanks

Hi 75
Yes! Open the Display Preference and go to the NTSC/PAL panel for the attached display, then calibrate it just like you did the Internal.
Dennis

Imac dual monitor primary monitor issue

This is driving me nuts and I must be missing something...
I have a 27" Imac (all-in-one) fully loaded with all the software I need (which I will call my old machine). I then bought another iMac but a newer one (I will call my new machine) again loaded with the software I need. I linked them together with the correct cable and the dual monitors worked great - my old machine being the primary display my new machine being the external display. It worked great for about 2 years but yesterday I thought I would like to switch the machines around so my new machine is the primary machine I work on (because it has a faster processor and some newer software) and my old machine will be the external display.
I just cannot do it!!! The arrangement tab in the display only shows on my old machine and no matter what I do with the screen and menu bars it is always the old machine which is primary with the older software.
I have tried unplugging each machine in different sequences, rebooting several times with always the same result - my old machine is the one with the Arrangement tab and therefore this is the primary display (with the older software).
Can anyone offer any advice on how to resolve this please.
Thank you in advance.
Tony

- What specific model iMacs do you have?
- Just how are you connecting them?
You may be using Target Display mode
Target Display Mode: Frequently Asked Questions (FAQ)
If so only the new machines can be used at a Target Display
BTW, you posted in the Mac Mini desktop forum.

MacBook Pro and iMac dual monitor

Can I use my 24" 2008 iMac as a dual monitor to use with my 15" 2011 MacBook Pro? I have a friend who can hook his Acer laptop up to his Acer monitor and can drag windows between the two screens. I was just wondering if there was a way to do something similar with my current models of Macs. Any help would be great!
-Geoff

Hello Geoff,
ScreenRecycler...
http://www.screenrecycler.com/ScreenRecycler.html

How do Dual Monitor with my Mac Book Pro (Boot camped with Windows 8) through my mini display port VIA Thunderbolt to a iMac (Model Mid 2011)?

So I have a Mac Book Pro with a bootcamp Windows 8. I dual monitor on the Mac side with my Mid 2011 iMac through my mini display port via thunder bolt cable. In my perfect world, I would be able to switch to the Windows side and have the iMac mirror or extend my windows display for my gaming pleasure, etc. I'm not sure if it's just a simple driver or that it cannot be done. Please help. Thanks.

so you want the notebook forum, not this one
MacBook Pro
https://discussions.apple.com/community/notebooks/macbook_pro
https://discussions.apple.com/community/mac_os?view=discussions
http://www.apple.com/support/macbookpro

Dual Monitor with iMac?

I have a iMac from early 2009 and wanted to use it as an external monitor for my laptop which has Windows 8.1 as it's OS. So my question is without using any software such as Synergy, Air Display, etc is there anyway I can make the iMac an external monitor for my laptop. I also have boot camp set up with Windows 7 as it's OS and I'm not sure if that's any help or not making this dual monitor setup work.
I was going to buy a mini displayport to VGA adapter (iMac (Early 2009) - Technical Specifications says: "Mini DisplayPort output port with support for DVI, VGA, and dual-link DVI via adapter," so I am assuming I cannot use HDMI) and use that to connect my laptop and the iMac together. And so I was wondering if that'll work out if I'm on windows partition in boot camp or not.
iMac Specs: iMac (Early 2009) - Technical Specifications
Laptop Specs: http://www.asus.com/Notebooks_Ultrabooks/N56VM/
Any help would be appreciated, thanks.

Can't do it as far as I know. The mini display port on your Mac is for output only. You need a late 2009 or later iMac to do Target Display Mode Target Display Mode: Frequently Asked Questions (FAQ)

Dual Monitor Setup/Home Network/Sync--11" MBA & 21.5" iMac via Thuderbolt cable?

11" MBA & 21.5" iMac both purchased in August 2011 running Lion
Is it possible to setup my MBA & iMac where they will sync? I have them connected via thinderbolt and want to be able to connect when I get home and sync all my folders [notes, cases, papers, etc...]?
If this is not possible is there a way to transfer files between my two machines using the Thunderbolt cable? I ask because even though my MBA has a Thunderbolt port, there is not "Fire Wire" option under "System Preferences →Network" like there is on my iMac?
In a perfect world I want to be able to hook up my MBA & iMac via Thunderbolt cable, have them both controlled by my Magic Mouse & Keyboard I use with my iMac as dual monitors and be able to transfer files back and forth freely. I understand this may be a lot to ask but thought I should throw it out there just in case there was a way and I was not doing something right.
I appreciate all the help by everyone in the Apple Commun ity

OK great info!
I found 2 possible ethernet to USB adapters:
By "Plugable": USB 2.0 to ethernet LAN wired network adapter - seems this will work, but I'll contact Plugable.
2. Apple USB Ethernet Adapter
Easily connect your MacBook Air computer to an Ethernet network with the Apple USB Ethernet Adapter. Small and light, it connects to the USB 2.0 port of your MacBook Air and provides an RJ-45 connector that supports 10/100BASE-T performance. BUT NOT SURE IF THIS WILL WORK ON ANYTHING BUT a MacBook Air…
One person commented:
This little gem used to be the device of choice for adding a second Ethernet interface to a Mac Mini Server and I'd been using one that way for about a year. After doing a software update to 10.6.6 it stopped working. Forewarned is forearmed – it appears that Apple is finally enforcing the MacBook Air system requirement.
Thanks for any additional comments.
Best regards,
Steve Schulte
Sunday 6 January 2013

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

If it won't turn on then the monitor is dead (power supply?, video circuits?). Not worth repairing.
If you have a new iMac then it has thunderbolt. So exactly what is that monitor you are trying to connect? For TB you can connect a mini-displayport monitor. Probably (not 100% sure with TB) can use dvi or vga too if you have the appropriate adapter.

What cable do i need for a dual monitor iMac late 2013

Hi there
I am wondering if I can set up a dual monitor for my imac late 2013. I'm quite new to macs so bear with me. I'm a university student studying maya (digital vfx animation) and I need desperately to hve a dual set up. My mac is the 21.5inches. What cable would I need and would monitor would you recommend that would be a good match to my mac. I can afford around £150 but cheaper the better. I am a student who is also a full time disabled single mum lol so funds are scarce.
Thank you in advance for any help that you can give me.
kind regards
Kitt

You will need the mini-DisplayPort to VGA adapter cable, here.

New Dual Monitor Setup; iMac 21.5

I finally have my new dual monitor set up for my iMac after asking a while back.
I ended up getting a Lenovo monitor because thats the best deal they had. It matches pretty good, seems a little cheap but it works and works well for what I am going to be using it for.
The colors are a little off and yellowish but I am going to wait to give any kind of a review until its used for a month or so. That will give it some time to "break in".
Enjoy

Hi BNun
It is real easy to select different Profiles and/or create new Color Profiles for your Displays.
Just go to: Apple > System Preferences > Displays > select the Color tab on the display preference panel for Lenovo display and uncheck the box " ☐ Show profiles for this display only" then
1. Select a different profile such as (Adobe RGB, Generic RGB, iMac, etc.)
2. Calibrate and save a custom Profile to the list. > http://www.computer-darkroom.com/colorsync-display/colorsync_1.htm
3. Sweet use any profile in the list, if you don't like it then switch back or create another.
In my case I could be happy with using the Generic RGB Profile and then lowering the brightness a notch or two, but prefer to use (W2253 Calibrated 3) which was my third attempt of 5 creating some new profiles for my LG.
Dennis

Can I connect my A1225 IMAC'S as a Dual Monitors?

Can I connect my A1225 IMAC'S as a Dual Monitors?

I have two A1225 IMAC monitors that I want to run as dual monitors to give me the capability to use one screen for editing and the other as a home computer. I have a mini display port to mini display port cable and wanted to see if I could possibly perform this action. Is this the correct cable or not?

Dual monitor use on iMac 24"

Can I hook up another monitor to the iMac for dual monitor use. Looks like it
can be done looking through the post, just want to make sure.
Thanks

Yes you will need this cable.
http://store.apple.com/us/product/M9321G/B?fnode=MTY1NDA3Ng&mco=MTUzNTQ

Which dual monitor for iMac 21.5" 2010?

Hey guys,
I've had my iMac 21.5" 2010 model for a while now, but now I would like another monitor.
It must be:
-Around 21.5"
-Preffibly LED back lit
-Black and/or aluminium
-Connect to my iMac
Do any of you have any suggestions for good dual monitors. Currently I'm not looking at the Cinema displays.

Back in the mid 90s I had a 17" display that I thought was heaven but as DTP and graphics software became more powerful I decided I needed a second display but when I went looking I found my display had been discontinued. The second display was also 17" but it was about 5 inches taller. I liked it better but I found it disconcerting that they weren't vertically aligned. A couple old college text books solved the problem.
More recently I received a nice HD LCD display from my wife when she upgraded and it was maybe an inch shorter than my iMac. That didn't bother me at all. The display itself is 2" larger than my iMac and that didn't bother me either. I sometimes connect my notebook to the LCD and then the size difference does bother me so I only use mirroring with the notebook.
If the height difference bugs you, cheap out with a few books or go the classier route with a little shelf to raise the LCD. Or, find a display that has an adjustable height.

Dual monitor using imac

Can I use my intel Imac as a dual monitor for my MBP?

Not directly, since there's no "video in" port. However, you could try using ScreenRecycler, which uses the VNC protocol to extend another Mac's desktop virtually (across the network).
Matt
Message was edited by: Matt Clifton

Imac dual monitor

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