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Questions tagged [thunderbolt]

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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MBP on TB3-Dock ignores USB-Devices until reconnect

There are two usecases for my MacBookPro15,1: When I am on the road I just use it as it is without any peripheral devices. But when I am at home, I put it (with closed lid) in the book arc and connect ...
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Switch between two devices on one Thunderbolt Display [duplicate]

I'm using a Late 2011 Mac mini with High Sierra on a Thunderbolt Display, connected by a Thunderbolt cable to the Thunderbolt port on the back side of the display. My wife has a Mid 2015 MacBook Pro, ...
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Using late 2012 iMac as monitor for a PC [duplicate]

My old iMac is getting slower by the day and I have good PC on the side but I don't want to ditch the gorgeous display that works perfectly fine so I'd like to use it as a second monitor. Even ...
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How to charge MacBook Pro quickly from an iMac?

I am charging a MacBook Pro using a Thunderbolt 3 cable plugged into an iMac. This charging speed is exceptionally slow. The image shows 5+ hours to charge the laptop. I am using: 2018 MacBook Pro ...
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Can I save Thunderbolt Display Arrangement so it is different depending on which Thunderbolt I connect?

I recently migrated from a 2013 MacBook Pro to a 2016 MacBook Pro, both running Mojave 10.14.3. I connect my laptop to a Thunderbolt 2 display. I have one Thunderbolt at my office, and a second one ...
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13 views

How to prevent iMac from using the second monitor but still using its audio?

I connected my AV receiver to my iMac via the Thunderbolt-to-hdmi adapter but I do not have any TV connected to the receiver, meaning no screen. The whole purpose of this was for being able to use ...
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MBP 2016 - High Sierra - Thunderbolt Ethernet stops getting detected after frequent plugging/unplugging

I have a 2016 MBP 13". I frequently work from home and office and use Thunderbolt Ethernet using Anker USB-C Ethernet I also run and work on VM ( Fusion ) for my development tasks. During switching ...
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MacBook Air 2018 Thunderbolt/HDMI to external screen - low resolution, no sound, no options

So I just upgraded to a 2018 MBA from a 2013 MBP. I never had screen issues with the MBP, just plug in the HDMI cable and everything just works. The connection goes via a Denon receiver. Now on this ...
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How can I debug an unrecognised display in High Sierra?

My external monitor recently stopped being recognised by my MacBook Pro (Early 2011 - 8,2, High Sierra, 10.13.6) I have reset PRAM / SMC and tried a number of troubleshooting steps as outlined in the ...
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1answer
20 views

OSX wont save external monitor screen arrangement settings, weird graphics issues with displays

Ive got a 27" iMac 4.2ghz i7, 16gb ram, 8gb GPU, running OSX 10.13.6 Ive got 2x external 1080p monitors connected to it via the thunderbolt ports using 2x of these HDMI to thunderbolt adaptors ...
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Use Apple monitor as second monitor for windows pc

I've an Apple monitor 27' with thunderbolt port, such the one in the picture below. Do you know how if it could be used as external monitor for a windows pc, that has not thunderbolt port?
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1440p/144hz Causes Mouse Stuttering

I have a 15" 2018 MacBook Pro with 4GB Radeon Pro 555X graphics. I also own a Pixeo PXC32 monitor that I use between my Windows 10 laptop and this MacBook. I am having trouble getting 144hz in 1440p ...
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How to connect an iMac 2011 to an HDMI laptop?

I have a 2011 iMac with one Thunderbolt 1 port and one FireWire port. Is there a way to use one of those ports to connect the iMac to an HDMI laptop so that it can be used as an external display? ...
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Two USB C monitors from a single Thunderbolt port?

Any number of docks exist which demultiplexes both DisplayPort signals from the Thunderbolt bus and also provides USB C ports some at 10gbps even but I can't find one that puts the DisplayPort signal ...
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13 views

displays - drive displays from USB-C hub

Is it possible to drive a monitor from a hub? If the hub was Thunderbolt 3 compatible and I used a USB-C to HDMI adapter, from the hub to the monitor, would this work? The monitor in question is a ...
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27 views

External (Thunderbolt 2) drive keeps changing to read-only randomly

I'm running macOS 10.14.2 on a 2018 Mac mini. I have an Akitio enclosure, connected to the Mac via a Thunderbolt 2<->3 adapter. At random, one of the drives in the enclosure becomes read-only (the ...
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Macbook with thunderbolt 3 and disk drive?

I thought I just saw someone with (what I believe to be) a thunderbolt 3 and a disc drive on their MacBook, and I thought there were no more disc drives that were built into MacBooks (that have ...
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Two thunderbolt ports on my mid-2015 MacBook Pro how do I configure one monitor to be in mirroring mode and the other in extended desktop mode?

So its my understanding that I can have two flatscreen monitors as long as I use the right cables and each thunderbolt on my Mac will connect to each monitor for a total of 2 monitors and as long they ...
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1answer
12 views

How to use a portable display with an older Macbook 2011 (USB 2.0)

I've been looking at the Asus Zenscreen portable displays to add a second screen to my Macbook Air. (Model 1, Model 2) The problem that I'm running into is that it's a USB-C connection, or ...
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1answer
19 views

Is it a bad idea to daisy chain to an internet router through an external drive?

I'm interested in setting up a wired connection to my router, in order to achieve a faster internet connection than I can get from built-in 802.11n. My 2012 Mac Book Air has only one Thunderbolt 1 ...
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1answer
76 views

Can a monitor connected with Thunderbolt 2 power a mid-2013 MacBook Air?

Want to buy an external monitor for a mid-2013 MacBook Air. Am wondering whether one with a Thunderbolt 2 port will be better in that it will also power the laptop. Else I'll buy one with USB-C to ...
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2 VGA Monitors to Thunderbolt/USB-C on MBP

I had a previous monitor setup with two VGA monitors connected to my previous MBP, through mini port or display ports (I cant recall exactly but I had two nice big external monitors). Long story ...
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1answer
54 views

27" Apple Cinema Display (video and power) to one USB-C

I've got an Apple Cinema Display with ThunderBolt-2 and MagSafe-1 connector and would love to combine these two cables to one ThunderBolt-3 to supply power to the Mac and video and sound to the ...
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1answer
126 views

How to connect MacBook Pro to an iMac with a 3rd party keyboard?

I was following the instructions here: https://support.apple.com/en-us/HT204592 which say to press CommandF2 and that works fine when I use my Apple keyboard. However, I want to connect my Apple ...
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461 views

Why do I see “Cannot Use Thunderbolt Accessory”?

I purchased a brand new MBP and a cable was included in the box, it has USB-C type connectors on each end and works for charging the computer. When, instead of charging with the brick, I plug it into ...
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1answer
457 views

How to use 2 FullHD monitors to one Type-C port on Macbook Pro 15 2018?

I've seen multiple questions were people are told you can't really use one port but it depends on your adapter and how you use it. I have a startech USB-C to 3 HDMI adapter: And I've been using this ...
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15 views

iMac doesn't see external bootable SSD on startup

I have an iMac 2013 with HDD and I recently upgraded it with extarnal SSD connected via Thunderbolt. It works pretty well but sometimes when I turn my iMac on, it shows a black screen with text like "...
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224 views

ThunderBolt 3 to Firewire 800?

I have several FireWire 800 Hard disks full of data/video/images I need for work. Last week I bought a brand new iMac and only today I realized that Apple is not selling any Thunderbolt 3 to FW800 ...
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1answer
28 views

How to diagnose slow file transfer performance?

I just bought a brand new MacBook Pro and am transferring files from a brand new external SSD hard drive. Performance is much lower than I expected. The picture is showing ~44 MBps, which has been on ...
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2answers
718 views

Does Thunderbolt 1 provide USB (3.0) functionality?

Does Thunderbolt 1 provide USB (3.0) functionality? Or in other words: Is Thunderbolt 1 compatible with USB (3.0)? I have a MacBook Pro 13'', Early 2011 (MacBookPro8,1) and a Laptop Docking Station (...
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50 views

Strong inteference from mini DisplayPort

I have a 2015 Macbook Pro 15", and when I connect the mini DisplayPort to my external monitor, the WiFi speed drops significantly (from > 100 Mbps to < 10 Mbps). I noticed that the WiFi noise level ...
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448 views

Will the 2018 Mac mini be able to use my 2011 iMac in Target Display Mode?

I'm currently using a 2015 MacBook Pro and using a Thunderbolt cable to my 2010 27 inch iMac as the screen in Target Display Mode. I want to upgrade the MacBook Pro to a Mac mini, which has ...
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success with ASUS MB169B+ thunderbolt 2MBP?

Has anyone successfully used the ASUS MB169B+ with thunderbolt 2 Mac Book Pro? i personally have a late 2015 MBP and i see mixed reviews and explanations all over the place. i tried this before with ...
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1answer
75 views

Mac external displays are now in the wrong order

I have a 2017 27" iMac that generally has one external display, connected to the DisplayPort port of a OWC Thunderbolt 3 Dock. This display is always connected to my mac. Occasionally I will also ...
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49 views

Is it possible to use eGPU on an external monitor and another monitor plugged right into the mac which can use internal gpu

I'm using a late 2016 15-inch Macbook Pro with a Radeon Pro 455 internal gpu, a sonnet Radeon RX 580 eGPU, and three external monitors. Because the three monitors are connected to the to the eGPU, ...
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35 views

External monitor not properly recognized on iMac pro

I have an external monitor for my iMac Pro. It is connected via an USB-C to Displayport adapter from Moshi. Unfortunately, it behaves not optimal: If the monitor is switched on while the iMac is ...
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4answers
866 views

Thunderbolt 3 to Ethernet adapter

I have just ordered one of the new Nov 2018 MacBook Airs that only come with Thunderbolt 3 (USB-C) ports. Just looking for a simple clean solution for a highly performance adapter using the USB-C ...
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1answer
25 views

MacBook Air's Mini Display vs Thunderbolt

I can't find the right info on this, everything that I'm reading is mostly about monitors and HDMI about this topic. So my questions is... can I run an ethernet adapter for internet access through a ...
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253 views

Why is Target Disk Mode so slow?

Two macs: maxed out 2017 MacBook Pro (MBP) base model iMac Pro (iMP) Using the MBP standalone, the internal drive gives me read & write speeds of about 2600 & 2000 MB/s respectively. Using ...
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1answer
238 views

Thunderbolt to Displayport Connector

I'm trying to connect a 27" iMac Thunderbolt Display to a late 2009 21.5" iMac. It's my understanding that the thunderbolt display cord (with little lightning icon on it) will not work in the mini ...
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1answer
768 views

Mac keeps restarting with kernel panic “UPSB thunderbolt power on failed”

Does anyone know what could be causing this? Happening at least daily now, sometimes multiple times :( Anonymous UUID: 9BD0D242-70AD-9DEC-BCA3-D8DCCE96A963 Sat Oct 6 09:25:04 2018 *** Panic ...
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personal experience with Thunderbolt 3 dock and dual hdmi displays

i've placed a few of these, with mixed results, with cable-matters, startech, belkin, caldigit. but i have a couple HP displays which are just messing up pretty regularly with all these docks (or i ...
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1answer
442 views

Connect an external SSD (USB Type-C) to Mac Mini (mid 2011)?

I have a Mac mini (Mid 2011) and I want to use an external SSD (Samsung Portable SSD T5) with it. Now the problem is that Mac mini (Mid 2011) only has: Thunderbolt port (up to 10 Gbps) (not ...
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1answer
62 views

Two USB-C monitors with 2016 13-inch MBP w/ 4 Thunderbolt 3 ports

I have two USB-C monitors (specifically Dell P2219HC), and I am trying to connect to them both as separate external displays. I am using the included USB-C to USB-C cable for each monitor. If I plug ...
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35 views

Is there a 1 cable solution to connect 2 monitors in extended mode and charge a MacBook 15" at the same time?

What I'm trying to find is a hub which would allow me to achieve the following: using only 1 cable to the computer (thunderbolt or USB) charge a 15" MacBook Pro (85W) at full speed use 2 external ...
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1answer
18 views

New macpro needs to connect with thunderbolt

Getting new macpro. Have RAID external drive. I am unsure of the name of the connector but suspect it is thunderbolt not 3. I want to buy the correct connector so the data on the drive is available. ...
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1answer
532 views

Displayport to USB-C or GPU card for eGPU with Thunderbolt Output

Background: I purchased an LG Ultrafine 5k monitor per Tim Cook's recommendation. This only has a Thunderbolt-3 input. Awesome monitor, but very limited when it comes to what you can drive it with. ...
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How to connect two USB-C hdmi displays and an external drive to iMac with only two USB-C ports?

I have this 21.5 iMac but I need more displays in order to build a better workspace, so I bought a couple of USB-C AV adapters to connect the HDMi displays, but now Im using an external SSD (with usb-...
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1answer
309 views

Do all Macbooks have a Thunderbolt port?

I'm helping out with organizing a local conference, and I want all the speakers to be able to plug in their computers. While most laptops have an HDMI port, it's notably absent from a lot of Macbook ...
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1answer
3k views

2018 Macbook Pro & Dual Monitors

I'm trying to hook up dual monitors (Samsung CF390) to my MacBook Pro, but when I do, I only have the desktop image projecting on both screens. When I go into Settings > Display, the "Arrangement" ...