Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

MacRumors

macrumors bot
Original poster
Apr 12, 2001
64,416
32,243



Luna Display today introduced a new Mac-to-Mac mode that allows any Mac released within the last decade to be used as a second display for another Mac. This includes any combination of Macs, ranging from a MacBook Pro and an iMac to a MacBook Air being used as the primary display for a Mac mini.

To use Mac-to-Mac mode, users must purchase a Luna Display dongle that plugs in to the second Mac. USB-C and DisplayPort options are available for $69.99 each, and Luna is offering 25 percent off through Friday.

luna-display-mac-to-mac-mode.jpg

The primary Mac must be running OS X El Capitan or later, while the secondary Mac requires OS X Mountain Lion or later. In addition, both Macs must be connected to the same network via Wi-Fi or Ethernet, and each require the free Luna Display app available to download on the Luna Display website.

Luna Display is pushing forward despite Apple adding Sidecar in macOS Catalina, a native solution for using an iPad as a second display for a Mac.

"With all of the hype around Sidecar, one of the biggest gripes we've heard is that it only works with a limited range of Mac models," wrote Luna Display co-founder Giovanni Donelli in an email. "That got us thinking about how we can push Luna Display to bring even more value to our Mac devices."

Apple also has a feature called Target Display Mode that allows late 2009 to mid 2014 iMacs to be used as as external display for another Mac.

Luna Display's solution includes full keyboard, trackpad, and mouse support on both Macs. The company has shared complete step-by-step instructions on how to set up Mac-to-Mac mode on its website.

Article Link: Luna Display Introduces Mac-to-Mac Mode Allowing Nearly Any Mac to Be Used as Secondary Display
 
Last edited:

zed1291

macrumors regular
Jun 4, 2010
200
238
NYC
Article states Late 2009 or new iMacs support Target Display mode. Only the 27” supported it and any iMac with a 4K or 5K display does not support it.
 

sprihoda

macrumors newbie
Jan 10, 2018
16
17
I think I can guess the answer, but it would be awesome if you got boot screens/recovery mode abilities. Finally allow me to ditch the second display for my 2012 Mac Pro.
 

subjonas

macrumors 603
Feb 10, 2014
5,851
6,257
Edit- oops I missed the answer to my first question in the article.

Second question- If using a macbook as a mirrored display for a mac mini, how would this be different than using Remote Desktop software? Less lag?
 
Last edited:

zorinlynx

macrumors G3
May 31, 2007
8,265
18,140
Florida, USA
I admire that they didn't throw in the towel when Apple announced the Sidecar (which was originally their idea).


I currently do not have use for this, but there are people who might find this useful.
Sidecar was artificially limited to newer Macs and iPads. It's clear that Apple is about selling new Macs and iPads to people who want the feature.
 
  • Like
Reactions: turbineseaplane

Kinotto

macrumors regular
May 7, 2018
125
266
When Sidecar was announced I thought it’ll be the death of Astropad, but Apple’s lack of insight on what some Sidecar users will need played in favour of the little company.

Amongst the most notably lacking features there are:

-Pencil pressure sensitivity settings
-Customisable shortcuts
-Full on-screen keyboard
-Full touch support

All of those are fundamental features for a digital artist working on iPads, and them missing on Sidecar is a clear indication that Apple made this app not with artists in mind, as I was hoping ( which would have been an earthquake in the world of digital art).
Again Apple demonstrates there’s no visionary at the steering wheel, just a sad bean counter...
 

justperry

macrumors G5
Aug 10, 2007
12,575
9,783
I'm a rolling stone.

Works across all OS's and screens without a dongle, and has been around for years.

Huh, this has nothing to do with the article, it's about a second display, not mouse/keyboard sharing between computers.
 

tmn5044

macrumors newbie
Mar 9, 2018
2
14
When Sidecar was announced I thought it’ll be the death of Astropad, but Apple’s lack of insight on what some Sidecar users will need played in favour of the little company.

Amongst the most notably lacking features there are:

-Pencil pressure sensitivity settings
-Customisable shortcuts
-Full on-screen keyboard
-Full touch support

All of those are fundamental features for a digital artist working on iPads, and them missing on Sidecar is a clear indication that Apple made this app not with artists in mind, as I was hoping ( which would have been an earthquake in the world of digital art).
Again Apple demonstrates there’s no visionary at the steering wheel, just a sad bean counter...
It is just their first run at it, it is obviously a popular feature. I can see they will improve on it and eventually replaced Astropad, Duet, etc
 

ignatius345

macrumors 604
Aug 20, 2015
7,215
12,027
I admire that they didn't throw in the towel when Apple announced the Sidecar (which was originally their idea).


I currently do not have use for this, but there are people who might find this useful.
Same -- and I especially appreciate the support for older hardware. Apple tends to take a no-compromises approach that only includes their latest and greatest machines.
 
  • Like
Reactions: 4487549

subjonas

macrumors 603
Feb 10, 2014
5,851
6,257
My question as well, if it works well that makes iMac 5Ks potential monitors.

edit to add: since they're stating it has to be on the same network this seems like it would be sort of a VNC type of affair and probably really laggy. Not a direct cabled solution. That's too bad.
Yeah I don’t see how it could drive a 5k display over WiFi. Only some newer Macs can even drive 5k wired, right? Maybe if they bring it down to 1080p or something.
 

judas731

macrumors member
Jun 18, 2007
31
6
I bought the iMac5k 2018 thinking I could use it for my MBP second screen and learned the hard way I should've researched it a little more than impulsively buying it. Am I missing something or do they not plug and play with each other as a second screen and Luna could help fix that? Before sidecar I was just using Duet for my MBP and iPad.
 

reden

macrumors 6502a
Aug 30, 2006
721
837
Not any Mac. *The Secondary Mac requires macOS 10.8 Mountain Lion or later.
 

Kinotto

macrumors regular
May 7, 2018
125
266
It is just their first run at it, it is obviously a popular feature. I can see they will improve on it and eventually replaced Astropad, Duet, etc


EDIT: 4 years ago I would have agreed, but I don’t believe anymore Apple’s will is to deliver the best.
The Apple we all knew would never have released a software inferior at launch compared to alternatives developed by software houses with 1/1000 of the resources Apple have.

And the same applies to hardware: as I stated in another thread, besides the iPhones the rest of the product lineups are full of “premium” devices with stupid trade-offs and limitations, with the only logical reason behind being a will to keep customers in a neverending upgrade cycle which benefits no one but Apple itself.

You want a MacBook? Get ready for awful keyboards, graphics and thermals. Want an iPad Pro ? Sure, we give you the best, but don’t put it in your backpack or it will bend. Want a Pro desktop? Sure, but you can’t upgrade it, got to buy a whole new one.
 
Last edited:

sirozha

macrumors 68000
Jan 4, 2008
1,927
2,328
Will this work with the 2015 5K iMac?
That's a huge question.
[automerge]1571338904[/automerge]
I bought the iMac5k 2018 thinking I could use it for my MBP second screen and learned the hard way I should've researched it a little more than impulsively buying it. Am I missing something or do they not plug and play with each other as a second screen and Luna could help fix that? Before sidecar I was just using Duet for my MBP and iPad.
You could be the one who tells us if this will work. Go for it and let us know.
 

justperry

macrumors G5
Aug 10, 2007
12,575
9,783
I'm a rolling stone.
10 years ago I would have agreed, but I don’t believe anymore Apple’s will is to deliver the best.
The Apple we all knew would never have released a software inferior at launch compared to alternatives developed by software houses with 1/1000 of the resources Apple have.

And the same applies to hardware: as I stated in another thread, besides the iPhones the rest of the product lineups are full of “premium” devices with stupid trade-offs and limitations, with the only logical reason behind being a will to keep customers in a neverending upgrade cycle which benefits no one but Apple itself.

You want a MacBook? Get ready for awful keyboards, graphics and thermals. Want an iPad Pro ? Sure, we give you the best, but don’t put it in your backpack or it will bend. Want a Pro desktop? Sure, but you can’t upgrade it, got to buy a whole new one.

You forgot...pricing.:p

MacOs is still by far the best OS though, it's a shame though they removed Target Display Mode.
I agree to some extent, thing is, Macs do seem to get better lately, maybe Apple was preoccupied with the spaceship.
Shame prices went up substantially in the last few years.
There's no better phone than the iPhone, you won't find the integration with other Apple devices with other brands.
Concerning hardware, try to find a trackpad on other OS's that work half as good as Apple trackpads, it's the gold standard, no-one ever came close to it.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.