I have a laptop (a Lenovo Yoga 920) with Thunderbolt ports powered by an Intel Thunderbolt JHL6540 chip, which gets identified as a 15D2 controller.
When I plug in an Apple Thunderbolt Display, I am asked whether to connect to the display, but then nothing happens and the display doesn't turn on. There must be something missing, but what? I'm running driver 18.104.22.168, which is current, under Windows 10 Home 1709.
The same display (and Thunderbolt 3-to-2 converter) works with a Dell laptop that contains an older Intel Thunderbolt chip running an older driver, so it is possible to make this work under Windows 10.
Thank you for joining the community.
To investigate better on the case could you provide us with the following information?
Can you provide us with the Dxdiag report following these steps?
What kind of video cable is used for the connection?
What is the model of the display?
Can you provide us with the Intel® System Support Utility for Windows* report? Please attach
the result to the thread
OK, here is the information.
The laptop is a Lenovo Yoga 920 model 131KB with 16GB Ram and 4K
touchscreen. It has two USB-C ports with Thunderbolt 3 under a Thunderbolt
I have one ThunderBolt 3 port connected to a StarTech.com Thunderbolt 3 to
Thunderbolt converter TBT3TBTADAP which is connected to an Apple Thunderbolt
Display (which has an internal Thunderbolt hub) using only the display's
cable. The same behaviour occurs using the Apple Thunderbolt 3 to
Thunderbolt 2 converter.
Apple is bad at putting model numbers on their devices, but there has only
been one version of the display as far as I know, model number A1407.
I have attached DxDiag and SSU output with the display connected.
When I boot with the display attached or plug the display in I get a pop-up
titled Approve Thunderbolt Devices, with Apple Inc., Thunderbolt Display
listed. If I select Always Connect and OK the pop-up goes away but the
device is not connected. It does show up in Attached Thunderbolt Devices in
the Thunderbolt Software application, but not in Manage Approved Thunderbolt
Thank you for the information provided
We can start by verifying that the thunderbolt drivers are up to date, you have motioned that you are running 22.214.171.124 on the manufacturer site you can find the version 126.96.36.199 here is the link update the drivers
Does the system work if you connect it to another Thunderbolt display?
I went to that site and downloaded
Intel Thunderbolt Driver for Windows 10 (64-bit) - Yoga 920-13IKB, Yoga 920-13IKB Glass 188.8.131.52 22 Jan 2018
I ran the downloaded file and got a window saying
Setup - Intel Thunderbolt Driver
This will install Intel Thunderbolt Driver version 184.108.40.206 on your computer
This then gave a Destination Location of
which seems strange, but I accepted it.
I then ran the program what was suggested and got to the device-driver installation wizard. It ran and appeared to work fine, but the completion window said that it was installing drivers named
Intel(R) Corporation (nhi) System (06/06/2017 220.127.116.11)
Intel(R) Corporation (TbtMpDrv) Net (05/14/2017 18.104.22.168)
I rebooted, but the device behaviour did not change and the driver for the Thunderbolt(TM) Controller - 15D2 still has version 22.214.171.124
Either this is the most recent driver or the installer on the Lenovo site is somehow broken.
I only have access to the one kind of display, but both of them act the same.
My colleague has a Dell laptop with a Thunderbolt port, and the display works fine on that laptop. The Dell laptop has an older Thunderbolt chip and older drivers.
Thank you for your response
Seems that we are facing a comparability problem with the setting the Lenovo and the apple thunderbolt display we can try to contact Lenovo support for them to try to replicate the situation with the same scenario
They can also provide guidance for the driver update that in this case did not make any change on the system
I am experiencing the same issue. I have an Apple 27" TB Display, and it connects just fine with my HP Spectre laptop...
However, I recently upgraded to a new Gigabyte Aero 15, and when I plug the display in, the connection window pops up. I click "Always Connect" but nothing happens...
When I look at the TB attached devices, it says recognizes the display, but is not connected, and I can't get it to connect...
I'm currently running the latest 126.96.36.199 software package drivers. My HP had 16-dot something drivers. I can find them, but Intel's install program will not let you downgrade, so I have no way to go back to those drivers to see if they would work.
Can you suggest a solution?
Unfortunately I don't have any idea of what to do to fix the problem.
I did notice something in one of the Intel driver updates about no longer supporting host Thundebolt 2 hubs. Maybe that did something to also no longer handle Apple TB displays.
I expect that the only way to get action would be to get the Intel driver decertified because it doesn't work correctly. That would force action from Intel I expect. However, I doubt that we little people can get the decertification to happen.
Thank you for joining the Intel Community Support.
Because you are still having issues connecting your system to your displays, I would like to do further research about it.
Please provide the following information:
-HP Spectre laptop model.
Please run the following reports with the display connected.
-Intel® System Support Utility:
1.Download the Intel® System Support Utility and save the application to your system.
2.Open the application and click Scan to see system and device information. The Intel® System Support Utility defaults to the Summary View on the output screen following the scan. Click the menu where it says summary to change to Detailed View.
3.To save your scan, click Next and click Save. You can save the file to any accessible location on your computer.
4. Attach the report to this thread.
1. Right click on the Desktop, and click on Graphics Properties.
2. Click Options and Support, and then click Information Center.
3. Click on Save (save it in your desktop).
4. Attach the report.
pfps, please attach both reports, too.
I am attaching the files from my Gigabyte Aero 15 v8 here...
The HP Spectre x360 is the top that DOES work with this display (as does my ASUS ROG Laptop)..
It's the new Gigabyte Aero 15 v8 that doesn't.
The display is the Apple 27" Thunderbolt Display
Attached are the 2 reports...
I am still trying to gather some information to provide further assistance, if possible, about this Thunderbolt issues.
Please try installing the latest graphics driver for Intel® UHD Graphics 620 and provide us with the results.
Please try the following driver for Intel® UHD Graphics 630.
I have installed the new driver per your request but nothing has changed..
When I plug in the monitor, it still discovers it and asks me to connect, after I choose 'always', nothing happens... Just a blank screen.
Can you please help?
Thank you for trying out the steps provided.
I am still doing research about this issue. I will get back to you as soon as I have any updates.
I have the exact same connection issue to the Thunderbolt display as described by Ben.
Trying with a Lenovo Yoga 920-13IKB Notebook
Installed all latest drivers.
Hope you will find the solution