High speed multifunction port (interface) designed by Intel and first manufactured on a shipping product by Apple. Thunderbolt was developed under the name Light Peak and combines PCI Express with Display Port over one serial connection.

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3
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168 views

Higher kernel_task CPU usage when playing audio through Thunderbolt Display

I noticed today a higher kernel_task CPU usage when playing audio through Thunderbolt Display from my Macbook Pro (early 2011) on OS X Yosemite. Although the CPU usage is not very high (15 - 20%), it ...
2
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68 views

My thunderbolt port on my 2011 MacBook Pro 17" stopped working

Since day one through every os update I have used my MacBook hooked up to my tv as a source for playing movies. Out of the blue one day I hooked in the same thunderbolt to hdmi adapter that I had been ...
2
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0answers
951 views

HDMI & VGA issues with MacBook Pro Retina & Acer Monitor

I'm having a very strange issue. I inherited an Acer monitor from a friend that is full HD, 1080p. Good monitor overall. When connecting ONLY an HDMI cable from my Mac to the monitor, I get no signal. ...
2
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0answers
454 views

Physical keyboard & trackpad stop working on dis/connect of external thunderbolt display

I have a Macbook Pro (Retina, 13", Late 2013) running Lion 10.9.4, that I use with an external thunderbolt display, a bluetooth trackpad, and a USB keyboard -- both of which are connected through the ...
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40 views

Macbook Pro 13 Late 2013, BenQ GW2765HT, and Displayport cable

I recently purchased BenQ GW2765HT to connect my 13 inch rMBP via mini DP to Displayport. After around 1 week of use, the displayport connection is flaky to get properly recognized. Sometimes it ...
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0answers
20 views

MacBook Pro shows only pointer when external screen is turned on

I'm using my MacBook Pro (Retina, Mid 2012) in an office environment connected to an external screen (Fujitsu P27T-6 IPS) using the Thunderbolt port. The lid is closed, so it should be in clamshell ...
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0answers
24 views

How do I get all three monitors to work with 2015 Mac mini?

I have a 2015 Mac mini with two monitors hooked up out TB-VGA adapters. A HP and a Compaq. Today I added (or tried to add) a samsung 24" with the HDMI. Since adding the samsung, I can only get my ...
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59 views

Unable to connect Samsung S22E450 monitor

I'm unable to connect my MBPr 15'' mid 2015 to Samsung S22E450 display using Thunderbolt to DVI adapter. Using this machine no kernel panic occurs. This is the console log: 23/11/15 11:04:32,769 ...
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160 views

Target Display mode: iMac mid 2011 with MacBook Pro 2013 late not working

Hardware & OS LIST list: Mac mid 2011i5 4 GB MacBook Pro Retina late 2013 Thunderbolt Cable 2m OS X El Capitan‎ (both) I'm trying to connect my MacBook Pro with my iMac as extended display. ...
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192 views

Text is blurry in many apps after disconnecting external monitor

I have a 2015 Retina MacBook pro. Sometimes I connect it to a 24" Dell external monitor via thunderbolt->dvi. Whenever I disconnect the monitor, many apps (chrome, most noticeably) have blurry text. ...
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206 views

Thunderbolt Daisy Chain to Non-Thunderbolt Monitor w/LG 34UM95 at end of chain

I recently purchased a LG 34UM95. I planned to use the Thunderbolt daisy-chain feature to add another non-Thunderbolt monitor (mini DP --> HDMI) as the second link of the chain. However, it doesn't ...
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0answers
128 views

2014 Mac Mini with two mDP-DP monitors

I'm planning to upgrade from a 2011 base model Mac Mini to a 2014 high end Mini (2.8Ghz i5, Iris, 16GB ram) and wanted to see if I could drive two 2560x1600 monitors through the thunderbolt ports with ...
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0answers
241 views

Dual-Monitor: Second monitor black after sleep mode

I'm using two Elgato Thunderbolt Docks on my MacBook Pro Mid-2012. I connected two displays to them: One HDMI display on each of them. Both are LG-Displays, one a 16:9 and one a 21:9 display. This ...
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0answers
66 views

Chromatic Aberration with Mac Mini

I recently bought a Mac Mini Late 2014 intermediate version of the three available. I have the following issue. Sometimes when I turn the Mac Mini on or from standby I get this chromatic aberration ...
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195 views

MacBook Air: Two external displays using CadDigit Thunderbolt Station

I need to connect two external displays to my 2013 Macbook Air. Each external display has one VGA port and one DVI port. After some search, I found that my best option is the CalDigit Thunderbolt ...
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0answers
152 views

How to persist the display arrangement of multiple thunderbolt displays daisy chainded?

My setup is: MacBookAir, OS X 10.9.4 (13E28) and two Thunderbolt displays. It seems that the arrangement of the displays after reconnecting thunderbold or restarting device is rather randomly ...
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518 views

why does my Thunderbolt display not wake from sleep

When putting my MacBook Pro to sleep with Thunderbolt Display attached, upon waking-up machine...Thunderbolt Display does NOT wake, and I must unplug then plug-in the display for it to return to ...
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0answers
722 views

What can cause external monitor to remain on when MacBook Pro Retina goes to sleep?

I have a MacBook Pro Retina, Early 2013, running Mountain Lion with an external monitor connected via a Thunderbolt-to-DVI adapter on the rear Thunderbolt port i.e. the monitor is connected to the ...
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0answers
151 views

Can I use the octopus cable to connect a Thunderbolt Display to my 2012 iMac?

I tried connecting a Thunderbolt Display to my 27" iMac (2012) using the Thunderbolt end of the display’s octopus cable, but the display did not turn on and was not recognised by the iMac. Is this ...
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0answers
716 views

Black rectangle covers up most of screen, after disconnecting external display

I connected my MacBook Air to an external projector (using a Mini DisplayPort to VGA adaptor) to give a Keynote presentation, enabled screen mirroring, gave my talk, then disconnected from the ...
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0answers
2k views

Can the 2011 Mac Mini support 3 displays with DP 1.2 chaining?

Dell u2713H monitor supports Daisy Chaining. as one of the first monitors I've seen that uses DP 1.2 protocol. In essence, I'm asking if thunderbolt supports / enables / works with DP chaining, but ...
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169 views

Target iMac does not wake up with the main iMac, but works the other way around!

I have two 27inch iMacs, both 2011. When I connect iMac A to iMac B and let it sleep, iMac B's display does not wake up. However, it still shows up in the Displays and I can still play audio through ...
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884 views

iMac - 2nd display not working using thunderbolt - HDMI

I recently bought an LG monitor to use as a 2nd display but my iMac (mid 2011, running Mac OS X Lion) doesn't detect it. It's connected using a Thunderbolt-to-HDMI-cable (which I bought from The ...
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296 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?
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240 views

Any way to compare Thunderbolt config in picky iMac 21.5“ and happy MacBook Air 11”

Having tried to debug a really annoying 21.5" iMac for a day now, I'd appreciate any hints. The scenario goes like this: We got an iMac 21.5"(Mid-2011) for an auditorium and plugged it in through an ...
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1k views

Target Display Mode + Teleport with Thunderbolt iMac and Mac mini running Lion

I've set up Screen Sharing, so I can see Teleport is working... But I can't get it to work if I use Target Display Mode. Here's what I tried: ⌘+F2 with Teleport's mouse on the iMac. ...
0
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0answers
16 views

3xHDMI out of a single Thunderbolt port - 2015 MBP

I'm planning on purchasing 3 HDMI monitors to use as a workstation for my MBP. For the sake of ease and convenience, instead of using the native HDMI + 2 mini DP to HDMI adapters, is there any way to ...
0
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0answers
9 views

Is there a way to have the (automatically adjust) brightness of two thunderbolt displays connected to each other in sync

I have a MacBook Pro Retina with two Thunderbolt Displays connected to it in Daisy Chain mode. Both displays have the Automatically adjust brightness setting on, and the MacBook is closed. Is there a ...
0
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0answers
38 views

Reinstall Thunderbolt Firmware on a 27" iMac Late-2012

I have a consistent issue with the "Thunderbolt Firmware Update 1.2" showing up endlessly in the App Store, but more importantly, after installing it earlier today, my Thunderbolt ports no longer ...
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21 views

How to properly setup Continuity while using a Thunderbolt Display?

I mostly use my MacBook Pro Retina 15 Mid 2014 connected to an Apple Thunderbolt Display while working at home (this occurred as well with my previous MBPr Mid-2012). Basically, you have this cool ...
0
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28 views

5k iMac with 2 34 inch monitors

I have a 34 inch iMac 5k (late 2015), configured with the top specs: I'm currently running a 34 inch 3440x1440 monitor linked via thunderbolt. I recently ordered a second one. I've googled around ...
0
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21 views

My Thunderbolt speakers won't start ever since El Capitan update

Recently, I have updated to El Capitan. Ever since, my Thunderbolt speakers don't work. They probably just won't start on, and the Macbook air speakers are not loud enough.
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0answers
70 views

Macbook Pro Retina offset problem

I have a 13" 2015, retina MacBook Pro and an Samsung S22C150N external display, connected with an official Apple Mini DisplayPort to VGA adapter. I need to use the MacBook with the monitor, but when ...
0
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0answers
316 views

“Internet Sharing” via “Ethernet” is not working

I'm using OS X El Capitan (10.11) on my MacBook Pro (Retina, 15-inch, Early 2013) and I'm trying to use System Preferences -> Sharing -> Internet Sharing feature and something isn't working... I made ...
0
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0answers
76 views

iMac Thunderbolt external monitor black after sleep or blacking out intermittently

We have an iMac 2013 that has a second screen (3rd party) attached via Thunderbolt. Recently the second screen was having problems coming on in the morning when waking from sleep and we had to hit the ...
0
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0answers
13 views

Thunderbolt 2: Actual display demuxer (not DisplayPort)?

I recently got myself a 2015 MacBook Pro 13". Now I'd like to connect 2 external monitors to it. As I'd like to use my already existing setup I was looking for a docking station that supports dual ...
0
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0answers
34 views

HDMI to DVI-D works only when an additional VGA device is connected at start

I have a problem about connecting DELL P2014H monitor to my macbook pro (13" retina, 2013 late). Monitor does not respond when I connect the HDMI-DVI-D cable but, If I connect HDMI-DVI-D cable and ...
0
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0answers
26 views

How can I force OS X to never use display audio?

I work in a lab where it's often common to unhook from a thunderbolt display and go to another's desk and present after hooking into their thunderbolt display. The problem happens when OS X ...
0
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0answers
33 views

How to use a Mac Mini to power 4 tv's

We are looking to setup monitoring and a dashboard at work, and want to use a Mac Mini powering 4 Samsung 50" TVs (1080p). According to the official Apple Spec, it only supports 2 displays using the ...
0
votes
0answers
200 views

Mac Mini volume control disabled when using thunderbolt for display

I have a Mac Mini (late 2012) running the currently latest osx, El Capitan, and as display I use a Dell U2713H connected via thunderbolt (to a DisplayPort on monitor). This configuration is needed to ...
0
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0answers
61 views

Booted from Cloned drive works slow

situation is, i have to give up the Mac... Macbook Pro (Retina, 15-inch, Late 2013), 2.6 GHz Intel Core i7 processor, 16 GB 1600 MHz DDR3 RAM/Memory, Intel Iris Pro 1536 MB graphics, & a 1 TB ...
0
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0answers
233 views

Problem with Thunderbolt on Mac Air A1466

Recently I noticed that Apple TB Ethernet Adapter stopped working on my Mac Air. It is not a problem with lost packets. Or with DHCP not working. The system does not detect Adapter. It does not shown ...
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0answers
58 views

Thunderbolt to HDMI no image

I purchased this adapter (it is not original) and when I connect my macbook to a TV (Sanyo) the macbook detects it (it even blinks) but I get no image on the TV. Is there something I need to configure ...
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0answers
52 views

Belkin Thunderbolt 2 Express Dock HD dual monitor setup with DP1.2a display

Read a post here: Belkin Thunderbolt 2 Express Dock HD dual monitor setup In the answer of above question by @smoooosher, he claimed "The reason for this is that your dock is being driven by one ...
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0answers
69 views

Using two external monitors with Macbook Pro 13" Late 2011

I currently have a Macbook Pro 13" late 2011. It is connected to an old Dell monitor with a VGA to Mini Displayport adapter ...
0
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0answers
207 views

Issues using Firewire sound card with Thunderbolt adapter

I was using a Saffire Pro 40 card on a macbook via FireWire. I now need to use it on a mac mini and it only has Thunderbolt ports and no Firewire. I've got a Firewire to Thunderbolt adapter and ...
0
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0answers
101 views

2 External DVI Monitors from 1 Thunderbolt 2 port on Macbook Pro Retina late-2013 or better option

I have read some topics on here regarding the title. It sounds like, for the most part, running two displays from a single Thunderbolt 2 port doesn't really create an extended desktop, but a stretched ...
0
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0answers
158 views

Thunderbolt Ethernet Bridge; Very slow outbound packets to LAN and Internet

My 2012-era MacBook Air is connected to a 2012-era iMac via a Thunderbolt cable. The iMac contains a Thunderbolt-Ethernet bridge which in theory should allow the MBA to (1) participate in extremely ...
0
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0answers
12 views

Use Apple Cinema power power when another monitor in between?

I've got from left to right: MBP 15" Retina, Dell 27" 4K screen, Apple Cinema Monitor. The cord on the apple Monitor which contains the power is too short! Yes, I can just use a thunderbolt cable, ...
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306 views

AmazonBasics Mini DisplayPort (Thunderbolt) to VGA Adapter resolution is maxing out at 1280x1024

I've got the latest MBPR 13" (i7 - early 2015 on Yosemite 10.10.3) and am trying to use the AmazonBasics Thunderbolt to VGA adapter (located here: ...