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Why doesn’t target display mode work?

After reading online my iMac should work as a second screen for my new macbook. I have a thunderbolt to usb-c adapter and have been pressing command+f2. Below are the specs of my iMac, my ...
user416627's user avatar
1 vote
0 answers
30 views

Using a mid 2010 27" iMac as a second screen for a mid 2015 27" 5k iMac [duplicate]

I would like to use my ageing 27" iMac (mid 2010 model) as a second screen for my mid 2015 5k model as my even older 24" Cinema Display finally gave up the ghost. I have tried hooking them ...
Marc Swarbrick's user avatar
0 votes
0 answers
19 views

Unable to Project MacBook Pro Screen to Old iMac [duplicate]

I have a new MacBook Pro which I am not able to connect to my old iMac so I can use iMac as my secondary monitor. Details of MacBook and iMac MacBook Pro: 13-inch, 2019, Two Thunderbolt 3 ports iMac: ...
Shashi Gupta's user avatar
0 votes
0 answers
52 views

How to use iMac (27-inch, Late 2013) as a second monitor for Macbook Pro (13-inch, 2020)? [duplicate]

I bought Thunderbolt 3 (USB-c) to Thunderbolt 2 by Apple and Thunderbolt Cable (0,5m). Cmd+F2 doesn't work for me. I guess it's just because Apple now prevents to use old iMacs as monitor with new ...
Pavel Guzenko's user avatar
1 vote
3 answers
378 views

Target Display Mode using 2019 MBP and 2012 iMAC [duplicate]

I currently have: 2019 MBP on MacOS 10.14.6 2012 iMAC on MacOS 10.14.6 (thunderbolt 2) I am connecting them to each other using a Thunderbolt 2 to Thunderbolt 3 adapter, both of which are brand new....
bhbbby's user avatar
  • 11
12 votes
2 answers
56k views

What are the requirements to use iMac screen as a second monitor - Target Display Mode?

I have a Surface Pro 4 and an iMac (late 2019). I would like to connect my Surface Pro to the iMac to use the iMac screen as a second monitor. Is that possible? What are the requirements to use an ...
jtag47's user avatar
  • 121
0 votes
1 answer
1k views

Which 27" iMac can be used as external display on a MaBook Pro Mid 2015?

What is the latest 27" iMac model which can be used as an external display on a MaBook Pro 15" Mid 2015? And can I run latest macOS on both MBP and iMac to have this working or need to use older ...
KcFnMi's user avatar
  • 753
1 vote
1 answer
1k views

Using an iMac as a display for PC laptop in dual mointor configuration

My goal is to have two large monitors for my PC laptop without having to purchase new monitors. My current setup is a late 2013 27” iMac with a 27” Thunderbolt Display. For work I was given a Lenovo ...
Nick Borunda's user avatar
2 votes
1 answer
1k views

Use an iMac 5k or iMac 4k 2017 as a target display with Macbook Pro retina early 2013

I have a Macbook Pro Retina early 2013 and I'd like to know if it's possible to use a brand new iMac 5K maybe the 4K 2017 as a target display for that macbook, is that possible, do I need an adapter ...
Adriano Rosa's user avatar
1 vote
1 answer
484 views

Video out from MacBook to iMac via thunderbolt

I know there is no way to receive a video input from HDMI to most macs, however, I am curious if this could be done over thunderbolt. If so what protocols would be used (RIP target display mode) to "...
zoecarver's user avatar
  • 695
1 vote
2 answers
1k views

Target Display Mode between a Dell XPS and 2013 iMac

I have been searching for a long time for the answer to this question. I have a Dell XPS laptop with minidisplay port out and a 2013 iMac. Can I buy a mini-display port cable and connect it to the ...
Matt Temple's user avatar
1 vote
1 answer
2k views

Target Display Mode between MacBook Pro and iMac won't work

I try to use my iMac as a external screen or otherwise if possible, but when I press ⌘ CommandF2 nothing happened. I also try fn⌘ CommandF2 just to be sure MacBook Pro 2012 iMac 27" 2012 Using ...
TheCrazyProfessor's user avatar
3 votes
1 answer
2k views

Is bootcamp 6.0 supporting Target Display mode of an Imac to a Windows 10 OS?

I have a 2014 iMac with a Bootcamp version 6.0 installed. I want to use it as a display for a MacBook Pro running windows 10 via thunderbolt to thunderbolt cable. Is that possible? or only works from ...
FrankS101's user avatar
  • 133
3 votes
2 answers
4k views

Why is Target Display Mode via Thunderbolt so unreliable for me?

I frequently want to display my MacBook Pro 15" Retina with my iMac Mid-2011, in Target Display Mode via a Thunderbolt cable. TDM often fails on first attempt and just shows a black screen on the ...
P A N's user avatar
  • 10.1k
1 vote
1 answer
119 views

Particular websites blocked when using Internet Sharing

I have the following setup. I have a Macbook Pro with an external monitor plugged into it via HDMI. I then have another external monitor plugged into the Macbook Pro via a Thunderbolt to DVI adapter. ...
jb1785's user avatar
  • 113
2 votes
2 answers
1k views

2009 iMac as 2nd Monitor – Can't adjust brightness

I am trying to use my 2009 iMac 27" as a second display for my 2013 MBPr 15" (both running El Capitan). I have connected the two with a thunderbolt cable and everything is working fine except one ...
Matt Cooper's user avatar
5 votes
3 answers
8k views

Can I switch between multiple Macs connected to an iMac with Target Display Mode?

I have a MacBook Pro that I use with a pre-Retina iMac in Target Display Mode, using Thunderbolt. I'm thinking of also getting a Mac Mini, and I want to run it in TDM on my iMac. Can I connect both ...
P A N's user avatar
  • 10.1k
9 votes
6 answers
32k views

Switch to Target Display Mode without keyboard

Here's my setup: MacBook --> Thunderbolt Display --> iMac 27" The MacBook is the primary computer I want to use; the iMac is the (external) display. This all works just fine. The problem is, when ...
Anna Dickinson's user avatar
2 votes
1 answer
912 views

Why doesn't MiniDisplay out work with Thunderbolt-only Target Display Mode iMacs?

I realize this is kind of an AnandTech-fu level question. Technically speaking, why doesn't a Thunderbolt iMac work in Target Display Mode with a computer that only has MiniDisplay out? That is, ...
ruffin's user avatar
  • 1,241
19 votes
6 answers
106k views

Can I use my Macbook Pro Retina as extra monitor for my iMac through Thunderbolt

I just bought a new late 2013 iMac and a new late 2013 Macbook Pro retina. Also bought an Apple thunderbolt cable. Pressing CMD+F2 (enabling Apples "Target Display Mode") on my iMac lets me use the ...
rassom's user avatar
  • 489
3 votes
1 answer
540 views

Use a Mini Displayport cable to connect a Late 2013 rMBP to a 2009 iMac?

Can I use a male to male Mini Displayport cable to connect a Late 2013 rMBP to a 2009 iMac? I want to use the 2009 iMac as a secondary display for the rMBP.
novicePrgrmr's user avatar
6 votes
1 answer
13k views

Can the new 2013 27" iMac function like the Thunderbolt Display?

The Thunderbolt display is a really cool external display for thunderbolt-enabled mac laptops, but the sad reality is, all those peripherals and that gorgeous display is useless when the laptop is ...
macek's user avatar
  • 161
1 vote
1 answer
452 views

Boot Camp and Windows 8

I had a Retina MacBook Pro with Windows 8 already installed. I can boot from it without problems, and all the drivers Apple provided for Windows 7 works perfectly for me except one thing. I am not ...
Shane Hsu's user avatar
  • 2,078
2 votes
1 answer
612 views

Can a Thunderbolt iMac be used in target display mode while booted into Windows 7?

Slightly different than what I'm seeing in search: If I have my iMac booted into Windows 7, can I (via Thunderbolt) use the iMac as a target display from my Thunderbolt MacBook Pro running OS X?
mbailey's user avatar
  • 21
4 votes
2 answers
2k views

Is there any way to use a 2011 iMac as a monitor for a non-Thunderbolt PC?

With a 2010 iMac I would be able to connect an HDMI to mini DisplayPort cable from a GPU to the iMac and have the iMac act a monitor using Target Display Mode. However, after some research I found ...
carbin's user avatar
  • 123