Questions tagged [thunderbolt]

Thunderbolt is a bus interface (like USB) developed by Intel and Apple that is capable of high transfer speeds and daisy-chaining. It is based off of the PCI Express and MiniDisplayPort technologies.

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38 views

What can a program find out about a USB-C cable attached to the computer?

I plug an unknown USB-C cable into my computer. Theoretically, could a program read information about that cable? In particular: What version of USB it supports: 2.0, 3.1, etc. Whether it supports ...
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Dell XPS 13 9370 not recognizing thunderbolt devices

I have an issue on my Dell XPS 13 9370 running Ubuntu Linux 19.10. I would like to use an external HDMI display with my laptop. I am using a Thunderbolt 3 to HDMI adapter to connect my laptop to my ...
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Thunderbolt 2 to Thunderbolt 3

How can I connect a thunderbolt 2 device to my PC that has a thunderbolt 3 port? Do I need to buy the expensive Apple cable "Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter" or are there any ...
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detect USB C/ Thunderbolt 3 connection in event viewer?

I have recently made a simple PowerShell script that upon connection of a PnP device checks whether a "razer naga" mouse is connected and runs the synapse software. Upon disconnection of the device, ...
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Thunderbolt 3 to 144Hz monitor

I'm planning to buy a Dell XPS 13'' 9300 laptop. It has 2 Thunderbolt 3 ports, and I really need it to work with a BenQ Zowie XL2411 144Hz monitor for CS:GO (2x HDMI, DVI-D, VGA). How is this possible?...
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Extra power through USB3 to make a thunderbolt powered USB switch work better

I have a usb-c thunderbolt HuB that has a HDMI output, a VGA output, 3 USB3 ports, an ethernet one and it has to be connected to a power adapter and to the laptop. I'm suspecting that the power in is ...
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How can I use a 2009 iMac as an external monitor for a 2019 MacBook Air?

I tried to use a Thunderbolt cable and a Thunderbolt 3 (USB-C) to Thunderbolt 2 adaptor for this process but it was unsuccessful. My research led me to figure out that my 2009 27" iMac has a mini ...
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Target display mode on mid 2011 iMac

I have an old 21.5" iMac (mid 2011) sitting around that's running OS X 10.7.5 (Lion)¹. It is listed by apple as one of the machines supporting Target Display Mode through Thunderbolt. I also have a ...
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How do I transport my graphics output and USB over Thunderbolt 3?

I want to have my Desktop in a different room to my monitors and IO. To do this I was thinking of using either USB-C or Thunderbolt 3, but since I have 2 4k monitors I've decided to go with ...
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Thunderbolt Display Not Working After Connecting to Surface Book

For some reason my macbook will now not work on my thunderbolt display. It worked before and the Surface Book I connected to it still works. Not sure what happened.
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how to make lg ultra fine monitor to work with windows?

Recently purchased LG ultra fine monitor LG ultra fine monitor Wanted to make it work with my existing windows laptop which has type-c connector. When connected It identifies the monitor, but the ...
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Surface Pro 7 Outputting to 2 monitors through dock reduced resolution

I have a Surface Pro 7 connected to a HP Thunderbolt dock - I have connected a 4k AOC monitor and a standard HD monitor to the displayports on the dock but my 4k monitor will only allow 2560x1920 ...
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434 views

What's the compatibility story for DisplayPort 1.4 and Thunderbolt 3.0?

Intel Titan Ridge controllers (and if I gather correctly, Ice Lake CPUs) are DisplayPort 1.4 and TB3 compatible (Intel Ark). I understand very well how this works in DisplayPort Alternate Mode: the ...
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Daisy chain from usb c to display port 1.2 from first monitor

I'm planning to purchase LG 32UL950-W monitor. It supports 4k Daisy chaining with Thunderbolt 3. At the moment I'm using Lenovo T23i-10 monitor which comes with Display port 1.2. I use USB-C to ...
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How do you enable pass-through of USB/ethernet on a Dell docking station? (WD19TB)

I have a laptop docked to a WD19TB via Thunderbolt but USB and RJ45 connections to the dock aren't visible to the laptop. How do you configure the dock to allow these devices?
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146 views

Can a computer output video and charge on the same USB-C Thunderbolt port?

I currently own a 2017 Razer Blade Stealth 13, and recently I came across a monitor that only takes Thunderbolt as an input. Luckily for me, my laptop has a Thunderbolt plug, however that plug also ...
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248 views

Computer acting as Thunderbolt “client” and passing through

I have a desktop at home, but also a Thunderbolt enabled laptop. If I wish to utilize my display, audio interface, keyboard and other peripherals, I connect to an old Thunderbolt dock. The issue is ...
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eGPUs for 3D content creation

Note: I realize the "discussion-ness" of this topic, so I'll try my best to phrase it as a question I'm interested to know the effectiveness of an eGPU for 3D content creation (animation, game dev, ...
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add Thunderbolt 3 connectivity to MSI X99S SLI Plus [closed]

I currently have an MSI X99S SLI Plus motherboard (5-6 years old) which I'd like to keep, but I'd like to add Thunderbolt 3 connectivity to my PC (mainly for connecting a modern low-latency audio ...
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Healthy external usb HDD 'does not exist' in Linux when connected over Thunderbolt 3

I have external USB HDD disk 'Western Digital My Passport'. It has MBR table mapped like this: 300 GB APFS 300 GB NTFS 300 GB APFS On macOS, all partitions work as expected. On WIndows, NTFS ...
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Speed comparison: SSD via Thunderbolt vs internal HDD

Im editing ≈75MB RAW Files with Lightroom. I have those files stored on multiple internal HDDs. To be honest: This was pretty slow. Clicking through those images and zooming in one to one takes a ...
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Inaccessible_boot_device installing Windows 10 in Thunderbolt m2 NVME drive on iMac

I am trying (for 3 days now) to install Windows 10 on a new Thunderbolt 3 NVME m2 drive. I already have a SATA SSD on a USB 3.0 enclosure, with Windows 10 OS running without any problem. So, the first ...
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usb-c and thunderbolt 3 monitors?

I have a macbook air with mini display port and newer macbook pro with usb-c thunderbolt port. I am looking to get a duel monitor setup that would work with both my laptops. I also want to daisy chain ...
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219 views

Does Lenovo Thinkpad Thunderbolt 3 Dock work with Thinkpad L480?

I just picked up the Lenovo Thinkpad Thunderbolt 3 Dock and connected it to my Lenovo Thinkpad L480. The problem is, that my laptop doesn't recognize the dock. I have installed the Thinkpad ...
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USB-C Alt Mode display and Thunderbolt 3 simultaneously

I have a laptop (2018 Lenovo 720 15") that has a single USB-C port. This single port is supposedly USB-C with Alt Mode video and also Thunderbolt 3. Is it possible to use all of USB, video and ...
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what is the use of a mini display-in port on a thunderbolt expansion card

I bought a Asus ThunderboltEX 3 card. Mainly to connect thunderbolt hardware to my PC. But it also has a mini display-in that according to the manual you connect to a GPU's VGA I/O with the included ...
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USB Devices not usable when connected via thunderbolt in Linux

I have Focal XS speakers (DAC via USB) connected to my monitors USB hub. The monitor is then connected to the laptop via thunderbolt 3 (USB-C). However, I cannot use any of the devices connected to ...
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Testing DisplayPort Alt Mode

Is there an easy way to debug the DisplayPort Alt Mode of a recent Display? Background: I have a Dell P2415Q (first gen, with no 4K 60Hz support over HDMI) that has been causing issues with multiple ...
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148 views

Connecting host USB-A to client USB-C

I have a new monitor which acts as a USB hub, taking input from things like mice and carrying them to the computer. However, all of its upstream outputs are Thunderbolt 3 / USB-C. My motherboard ...
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567 views

How to run 3 external monitors plus laptop monitor Dell 5530 + TB16

I have a 4K touch Dell Precision 5530 laptop with Intel 630 UHD internal graphics and Nvidia P1000 discreet. I have 2x Dell 4K U2718Q monitors and a third Dell P2213 monitor as well as a TB16 dock. ...
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HyperX alloy FPS stop working on my macbook

I'm using HyperX alloy FPS keyboard with my MacBook Pro 15 inches 2017 for a half a year, keyboard connected with my mac through Samsung C34J79 monitor (keyboard connected to monitor by 2 USB type A ...
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Restrict Usage of Thunderbolt or USB-C Port

Is it possible to restrict what services are allowed to run on a specific thunderbolt or USB-C port? For example, "only let Thunderbolt Port 0 to be used for charging and nothing else".
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Why would an attached Thunderbolt3 device be missing from the Thunderbolt Control Center?

I have an eGPU that I was having trouble getting connected to Windows 10. When plugging it in there are no prompts to approve it in the Thunderbolt Control Center. It acted as if it was not ...
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Can I connect a Thunderbolt 1 MacBook Pro to a USB C display using an adapter?

Could I use some kind of adapter to connect the Thunderbolt (1?) port on a 2012 retina MacBook Pro to a USB C display/monitor and get any display output? If that's possible, would the USB ports on ...
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86 views

How to debug USB devices on an Ubuntu 18

How can I debug USB devices on my Ubuntu Linux? Hardware I've got a Cherry keyboard connected by USB to a dell thunderbolt docking station which is itself connected to a XPS 15. Problem ...
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108 views

DVI to USB 3.0 to Thunderbolt: Laggy Screen and mediocre USB bitrate

I'm connecting an Early 2011 MacBook Pro 13'' which only has USB 2.0 port via its Thunderbolt 1 port to a Kanex KTU20 Adapter which successfully allows me to connect USB 3.0 cables to this old Mac ...
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Are these SSD temperatures too high?

$ sudo smartctl -a disk1 | egrep 'Model|Sensor' Model Number: Samsung Portable SSD X5 Temperature Sensor 1: 51 Celsius Temperature Sensor 2: 73 ...
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Laptop connected to docking station via HDMI won't display on DisplayPort-VGA connected monitor

I'm relatively new to the Thunderbolt docking station world, so I appreciate your patience. I have a Dell Thunderbolt TB16 docking station connected an old Dell monitor via a VGA to DisplayPort cable....
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806 views

Razer Core X eGPU not working in Thinkpad + Lubuntu 18.04

I've just connected a Razor Core X with an eGPU to my Thinkpad for the first time. The fans are spinning, but nvidia-smi doesn't show the eGPU. What can I do?
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Turning on/waking a computer from USB C dock without laptop being powered through the dock

Is it possible to wake/turn on a laptop with a USB-C Thunderbolt 3 dock when the laptop is not powered through the dock? (the laptop cannot be powered through the dock)
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159 views

Will USB-C monitors accept a DisplayPort signal from a USB-C to DisplayPort cable?

I have the new generation of the LG Ultrafine 4k for Mac, which eschews DisplayPort and HDMI inputs for two Thunderbolt 3 inputs. These inputs also support USB-C connections from the iPad Pro and ...
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debugging boltd and Dell TB16 on Dell Latitude 5491 and Xubuntu 18.04

Every now and then my Dell TB16 dock device stops working i.e. port replication is off, also the dock's white LED goes off. OS: Xubuntu 18.04.2 LTS Kernel: 4.15.0-54-generic #58 System: Dell ...
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449 views

Can I daisy chain multiple displayPort monitors from a single thunderbolt port on an XPS 15 laptop?

I currently use DP chaining to connect two Dell U2414h displays to the mDP port on my 9343 XPS 13. I'm looking at upgrading to a newer XPS 15, which has 1 x HDMI, 2 x USB3 and 1 x thunderbolt port. ...
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Windows 10 v1903 - Can no longer write to thunderbolt (reading is ok)

After being updated to v1903, I find that I cannot copy files to my QNAP server over thunderbolt. I can still copy to it over the network, and can read from it over thunderbolt, just not write. It ...
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Thunderbolt Dock into Desktop?

I have a desktop that I added a Thunderbolt card to. I also have a work laptop with Thunderbolt. Lastly, I have an old Dell TB16 Docking station. As a matter of convenience, I'd like to run all my ...
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Hotplugging Thunderbolt 2 monitor not working on MacBook Pro 12,1 (2015) with Ubuntu 18.04

Anyone had luck with setting up working hotplugging of Thunderbolt monitor (Thunderbolt 2) to MacBook Pro? After hotplugging the monitor, all its peripherals work except the display. It works only ...
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260 views

do i own thunderbolt 3 port and is there a large usb hub for it?

i own a Asus Zephyrus GX501VIK with four USB3.0 ports and one type C port i cannot figure out what it is. Asus's site claims its a "USB 3.1 Gen2 Type-C over Thunderbolt™" which frankly i have no idea ...
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349 views

Thunderbolt 3 used bandwidth with external GPU

question: how many Gpbs of data is sent from laptop to the eGPU for one frame? I have a Thinkpad T480 with 2 PCIe lanes TB3 port. Laptop specs: i5-8250u, no dGPU, only Intel uhd 620. I am trying to ...
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Alpine Ridge Thunderbolt port bandwidth allocation

As we know dual port Thunderbolt controllers are connected via only four lanes, see for example the block diagram below. Now my question is, if you were to plug in two eGPUs (PCI Express enclosures), ...
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255 views

Unbind AMD GPU without restarting the display manager

Backgroud: I have bought myself a thunderbolt eGPU case (Razer Core) and I want to use it with my AMD GPU (Rx480) on Linux. I use Kernel 5.0. Plugging in the eGPU while the PC is running seems to ...