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Gregintosh

macrumors 68000
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Jan 29, 2008
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With the new feature for universal control, I wonder if anyone here has considered what it would be like to have two iMacs side by side and using them as if its a dual monitor setup. I have seen people post in some threads here that they wish they could get a 2nd monitor that matches the iMac esthetic -- and well, what better way to match the iMac esthetic than to have a second iMac as the second screen?!

Since you can use one set of keyboard and mouse, you can put two of them side by side and in theory use apps on both. Even drag and drop files/images/etc. to each other.

In a way, it's better than dual monitor since each Mac is its own computer so you effectively get double the processing power. Imagine you can work on Final Cut in one (full screen mode) while your productivity apps, messengers, photoshop, etc. run in the other.

You can also run multiple instances of browsers, which would be helpful if you want to be logged into multiple facebooks, google accounts, etc.

I realize the price is high, but some people pay good monitor for high quality monitors and maybe some are willing to pay for the aesthetics.

One good way might be to get a base level for $1249 (Amazon price) -- almost same price as the 27 inch 5K LG monitor many buy except this includes a whole Mac too while sacrificing only a bit of screen real estate. This would be used for browsing, messengers, document editing, etc. Then get a higher spec one (more RAM and space) that would run the heavy duty stuff (final cut, development stuff, etc).

Then if you have a compatible MacBook Air or Pro already, you can effectively be using triple screens -- except each one is its own computer so no slow downs at all from having many, many apps open across 3 computers.

I am not sure if the Airplay to Mac supports it as a second screen or only mirroring, but potentially if it supports it as a second screen that would give people the ability to just use it straight up as a second monitor without needing to keep up 2 different installations of the OS.

I am not personally thinking of doing this myself quite yet but it is an interesting thought. I wonder if anyone here has considered this and what the pros and cons might be. :)
 
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Lemon Olive

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Nov 30, 2020
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There is nothing shared between them at all, except mouse and keyboard control. Yes you can drag and drop files, which is a handy gimmick that improves upon having to use AirDrop.

But this isn't anything like using 2 displays.

For me I usually have my MBP sitting next to me while I work on my iMac if I need to use 2 machines at once for something, so universal control will be awesome for that...since I regularly rely on the wonkiness of Universal Clipboard and AirDrop.

Hopefully Universal Control is a lot more reliable than those features.

This is of course altogether different than purposely buying 2 machines to keep side by side just for universal control. To me that sounds like a waste.
 
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pshufd

macrumors G4
Oct 24, 2013
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New Hampshire
My current setup has a MacBook Pro next to a Windows desktop and I use Synergy to control both systems. I used to have an iMac in this as well but five 27 inch monitor takes up a lot of desk space. It may be a good solution if you want to partition your workload between multiple machines to better handle bottlenecks like RAM limitations.
 

Amethyst1

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Oct 28, 2015
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what it would be like to have two iMacs side by side and using them as if its a dual monitor setup.

 
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pshufd

macrumors G4
Oct 24, 2013
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New Hampshire

Using an old iMac as a monitor is pretty inefficient despite the ability to reuse equipment. I've done this on a Late 2009 iMac and the iMac puts out a lot of heat while just doing work as a monitor. Good in a pinch for a while but not really a long-term solution. Hopefully monitor prices will come back to earth one of these days.
 

pshufd

macrumors G4
Oct 24, 2013
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New Hampshire
...because it unfortunately needs to be fully up and running.

Luke Miani's hack where you attach a small PCB and just use it as a monitor is far more efficient. The thing is you can pick up old iMacs like that for $100 - $150 and a QHD 27 monitor is probably a few hundred.
 

GloatGoat

macrumors newbie
Dec 25, 2020
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This video from Mr. Macintosh offers some insights into AirPlay's updated functionality in the upcoming Monterey release.

 
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Gregintosh

macrumors 68000
Original poster
Jan 29, 2008
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Chicago
Luke Miani's hack where you attach a small PCB and just use it as a monitor is far more efficient. The thing is you can pick up old iMacs like that for $100 - $150 and a QHD 27 monitor is probably a few hundred.
I spent a little time searching but could not find this video -- that Luke Miani puts out a lot of content! Haha. Can you post a link if you have it handy? I think this might be a great idea for people with old 27 inch 5k iMacs.

This video from Mr. Macintosh offers some insights into AirPlay's updated functionality in the upcoming Monterey release.

Awesome definitive video on what Monterrey can do. Thanks for this one! It looks like using a USB-C cable might be the best idea, using the iMac as a docking station and probably be more smooth/reliable than Wi-Fi.

This makes me want to get a basic iMac to use as a monitor/dock for my MacBook to charge/use the display. And of course for days I don't put the laptop out of my backpack or I just want to surf the net or something (no need for my work files) I can always just use the iMac as an iMac
 

Sheepish-Lord

macrumors 68030
Oct 13, 2021
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I'm wondering the same thing currently. Using my MacBook as an extended display is pretty rough, the resolution is terrible on the MB regardless of setting and no audio plays through my iMac when doing this for some reason so I can't watch a movie on my iMac while doing something on my MB.

I'm curious if you can connect another 24" iMac to another 24" iMac using the Thunderbolt port like you can with a regular monitor. I would gladly buy a refurbished iMac just for esthetic continuity.
 

pshufd

macrumors G4
Oct 24, 2013
10,149
14,574
New Hampshire
I'm wondering the same thing currently. Using my MacBook as an extended display is pretty rough, the resolution is terrible on the MB regardless of setting and no audio plays through my iMac when doing this for some reason so I can't watch a movie on my iMac while doing something on my MB.

I'm curious if you can connect another 24" iMac to another 24" iMac using the Thunderbolt port like you can with a regular monitor. I would gladly buy a refurbished iMac just for esthetic continuity.

I don't think that post - 2013/2014 iMacs can be used as a monitor/speaker without going through WiFi and I think that you get some lag unless you're using really fast WiFi. It might be easier just finding an old 2009 iMac for $100 to use as monitor and speaker.
 

Sheepish-Lord

macrumors 68030
Oct 13, 2021
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I don't think that post - 2013/2014 iMacs can be used as a monitor/speaker without going through WiFi and I think that you get some lag unless you're using really fast WiFi. It might be easier just finding an old 2009 iMac for $100 to use as monitor and speaker.
No point in using a 2009 iMac with my 2021 iMac, completely different screens.
 
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