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XPS 15 9550 - Thunderbolt port not working - TB16

Q: XPS 15 9550 - Thunderbolt port not working - TB16

I'm having issues getting the TB16 to work with the XPS 15 9550. I successfully installed all the drivers in the proper order as documented prior to plugging in the TB16 for the first time.

I've verified that I indeed do have a Thundrerbolt port - there is a Thunderbolt symbol next to the USB-C port.
When I do plug in the TB16 the power button on it will power the system off/on.
I've used a usb-c to Displayport adapter and a usb-c to usb 3.0 adapter with a flash drive. Both worked successfully so the basic functionality of the usb-c port is working.

When I plug in the TB16 I never got an authentication window pop-up. In the Thunderbolt software it shows no attached devices.

The details setting in the Thunderbolt software looks fine, it appears to have the proper driver and firmware levels.

When I check the Thunderbolt driver it says that 'the hardware device is not connected to the computer'.
I'm at a loss - everything looks good except for the fact that nothing happens when I plugin the TB16. I'm wondering if there's a hardware problem with the Thunderbolt controller itself? I'd appreciate any help that anyone can give me.

RELEVANCY SCORE 200
Preferred Solution: XPS 15 9550 - Thunderbolt port not working - TB16

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)

A: XPS 15 9550 - Thunderbolt port not working - TB16

You might open the Thunderbolt software and set it to allow all devices. I reset my system and redid the TB16 and it shows the cable and dock as approved devices.
It was not hard for me. The thunderbolt controller is on the computer. You show some correct info for that controller, although since I have a 9365, that specific info may be different, but you do show a different controller generation..

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RELEVANCY SCORE 109.2

I have been experiencing issues with my USB keyboard on my XPS15 9550 w/TB16 Dock when the Logitech G610 USB keyboard is plugged into TB16 USB 2.0 port in the back.
The keyboard will hang, accepting no input. or may hang on a certain letter, thus producing an "aaaaaaaa" across the screen until the keyboard "comes back".
Keyboard seems to work fine while plugged directly into the XPS15 rather than the TB16.
I also have an external USB drive for backups that I use connected to the TB16, although seems to be functioning fine. I have not had a backup fail, so, I assume it is working fine.
I have tried downloading all of the drivers, and re-installing them in the proper order according to the documentation while disconnected from the TB16, and then connecting to the dock.

Is anyone else experiencing a similar issue?  Is it the dock or the 9550?

A:USB Keyboard Hangs/Quits working on XPS15 9550 and Thunderbolt Dock TB16 . W10Pro x64

If you happen to run Citrix Receiver, make sure you're running at least version 4.9, since earlier versions are known to cause USB issues with the TB16, although that typically presents as the USB ports not working at all.  If not, then there was also an issue with intermittent USB device disconnects that was eventually solved through a combination of drivers and firmware, so when you say you've downloaded all of the drivers, please confirm that includes:
- BIOS
- Thunderbolt firmware
- Thunderbolt software
- ASMedia USB Host Controller driver

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RELEVANCY SCORE 106.4

Hello.
I have purchased the new XPS 13 2-in-1 laptop.
The Thunderbolt 3 port on the left side of the laptop is not working.
I have also purchased the TB16 dock and it is not recognized at all.
In the Thunderbolt software details, it shows the Controller driver as "Unknown".
I am out of ideas.
I have done the following:
1. Clean install Windows and run all updates.
2. Install all of the latest drivers and Bios updates, in order, according to the official Dell guide for this laptop.
3. Followed guides in this forum and Reddit forums.
4. Had Dell support come in and replace the motherboard.
The TB16 dock is still not detected, nor is any other Thunderbolt or USB-C device connected to the port on the left.
The TB16 dock, however, does charge he laptop and properly shuts it down if I press the power button on the dock.
I have checked the Bios settings, and also tried updates/fixes from Intel. Nothing works. The Thunderbolt firmware update cannot even run because it cannot detect the controller. It still says Controller Driver as unknown.
I have the i7 with 16GB RAM, and 512GB SSD.

A:XPS 13 9365 - Thunderbolt/Power port not working - TB16

So you have loaded the Thunderbolt drivers (firmware and Controller) and it is enabled in the Bios?
There are also Dock Drivers.
I do not have any Thunderbolt devices so I cannot check.

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RELEVANCY SCORE 101.6

I've bought TB16 and update all drivers (Dell Assist does it) and after lowing network settings to 75% my DELL monitors flickering less but now I have major issue since my Dell Adapter - USB-C to HDMI-VGA-Ethernet-USB stop working completely. When I plug in nothing happens (yes, adapter is working properly and yes cables are correct)
In first few days, randomly, Windows was enable to turn on output to adapter (after hour of plugin, plug out same adapter).
Now, it's completely useless. 
Can anyone help, any suggestion ?

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RELEVANCY SCORE 98.4

I just bought a Dell TB16 USB-C/Thunderbolt 3 dock for my Dell XPS 9550. I updated the BIOS and drivers for both units using Dell Command Update, but now every time I boot up my computer I get a message stating "your PC may need updates for the Thunderbolt 3 port to function properly. For more information go to thunderbolttechnology.net/updates". That link, in turn, refers me to the Dell page that tells me to do the updates I've already done.
It's annoying to get this message even though everything appears to be up to date. Anyone run into this and have a solution?

A:Dell XPS 15 9550 with TB16 Dock Thunderbolt message

You have done the firmware update which might be required on some systems?

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RELEVANCY SCORE 94

Hi,
I myself own an XPS 15 9550 and noticed that I was not getting the full Thunderbolt 3 speedover it's Thunderbolt 3 port. I expected speeds around 2700MB/s, because of the overhead withthe theoretical gross speed of 3870MB/s, but I only ever got 1400MB/s out of it.
I did some digging and found out that none of the XPS notebooks with Thunderbolt 3 are evenable to achieve the full TB3 speeds, because they are only connected with two PCI Express lanes (x2.3).You can read more about this on the following links:Dell Subreddit PostChipset Digging on Forum

Thunderbolt 3 and the promised speeds were the MAIN REASON I even bought this notebook.I feel very cheated here.

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RELEVANCY SCORE 83.2

There have been several reports of the Thunderbolt 3 port on the XPS 15 9550 (and 13 9350) being configured to a PCI 2x port instead of the more usual PCI 4X port. Users have been reporting speeds of up to 16 Gbps, only half of the advertised speed (40 Gbps) which should be 32 Gbps (with overheads) for data.
https://www.reddit.com/r/Dell/comments/5hl5i4/xps_15_9550_not_able_to_reach_40gbps_over_tb3/
https://egpu.io/forums/pc-setup/xps-15-9550-not-able-to-reach-40gbps-over-tb3/
The result is significantly TB reduced performance to comparable machines, especially when using an external GPU set up.
If this is not hardwarematically configured as such, it may be possible this could be fixed with a firmware update. Will this be coming?

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RELEVANCY SCORE 82

I recently purchased an XPS 15 9550 with i7, 16 GB RAM, 256 GB SSD, and GTX 960m dGPU that I have connected to a 27-inch QNIX qx2710 2560x1440p external monitor. I have this connected through a Cable Matters USB-C/Thunderbolt 3 to DVI-D adapter and cable.
The monitor and everything seem to work fine at 60hz, except for every time I unplug, turn on, or restart the monitor/computer the first five or ten minutes of use is plagued with constant screen flickering and flashing. After ~five minutes the monitor seems to stabilize and will only rarely have a single screen flicker. 
I have read other forum threads describing similar issues with different monitors/cable setups and that there is likely an issue between the wifi card and thunderbolt port. The common recommendation is to turn down the wifi output percent to 75%, however the Killer wifi card on this computer does not have an option under advanced settings to turn down the power output. Has anyone had any luck doing this on a recently purchased XPS 15 with the Killer wifi card?
The cables and adapters are new and the BIOS and all drivers are up to date. Other than the wifi issue, does anyone have suggestions or solutions to this screen flickering problem?

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RELEVANCY SCORE 81.2

Hello,

Dell just release a new Thunderbolt firmware 4.26.03.001 ,A07
I installed it, and it seems to have destroyed my external HDMI port.
I tested it with different monitors and cables.
On some monitors the colors are inverted (white goes black). Some monitors don't display anything.

I hope the upgrade caused no hardware defect to the HDMI port.
Unfortunately I cannot find the old Thunderbolt firmware to got back.

Regards
Oliver

A:XPS 9550: Latest Thunderbolt firmware upgrade destroys HDMI port

Same. Installed the new firmware successfully, restarted and now my HDMI port is more or less dead. The Laptop still detects the external monitor but it won't output anything.
Tried reinstalling the Intel HD Graphics driver, changing resolution, different cable, different monitor... nothing helps.

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RELEVANCY SCORE 81.2

On the XPS 15 9550, can an external monitor with Displayport inputs be connect directly into the laptop's USB-C Thunderbolt output using a straight miniDisplayport-to-Displayport cable?  Similarly, can a miniDisplayPort to VGA adapter cable be plugged directly into the USB-C Thunderbolt port to drive older monitors/projectors? Or is the TB15 Dock mandatory in order to get the computer talking to  external video devices through its Thunderbolt port output?

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RELEVANCY SCORE 76

I'm trying to use the Dell XPS 15 9550 with Windows 10, and I connected two external monitors, one to HDMI, one to Thunderbolt.
Only the one connected to Thunderbolt works, the other doesn't, it simply says no signal.
The cables and the port itself definitely work, if I switch to Ubuntu, both screens work.
On Windows, only the Thunderbolt works, even if I connect only one screen, the HDMI output doesn't work. I tried all combination of screens and cables, and in all combinations it is always the Thunderbolt output that works.
I'm on the latest updates with Windows 10. Latest NVidia drivers. Tried the latest Intel graphics drivers from the Dell site, also the latest ones from the Intel site.
One extra information: some forums suggested checking the NVidia Control Panel, but there I only have the "3D Settings" node in the tree, nothing else.
(I've googled a lot and read all the forum threads I could find, but nothing worked.)

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RELEVANCY SCORE 72.8

Because I didn't liked USB 3.0 ethernet chipsets and USB-based ethernet cannot bear some network-intensive tasks, I wanted to use PCIe-based Thunderbolt ethernet controller on my XPS 15 9550. As there is no Thunderbolt 3 "PCIe" ethernet adapter (except docks), I chose to buy Apple Thunderbolt 3 to 2 adapter and Thunderbolt 2-based ethernet adapter.
I plugged it into the XPS 15 9550 (tested with BIOS 1.1.19, 1.2.14, 1.2.16 and latest Thunderbolt firmware with NVM version 16), and the PCIe device did not pop up. Instead, only USB billboard device is appearing saying that "Alternate Mode configuration not attempted". Both Windows 10 and Ubuntu 16.10 failed to detect the device. I moved this configuration to MSI GS63 laptop, and it detected ethernet controller successfully (that laptop utilizing NVM firmware version 18).
It seems that other vendors are affected with lower NVM firmware version involving setup with Thunderbolt adapter: see the case of Lenovo too. Do you have planned Thunderbolt NVM firmware update for XPS 15 9550? Looks like XPS 13 9360 is using newer Thunderbolt NVM firmware version, though.

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RELEVANCY SCORE 70.8

 Nothing happend when DELL Thunderbolt dock plugged in. Monitor connected to the dock does not light up. In Windows device manager,  'Thunderbolt(TM) Controller -1577' state is "Currently, this hardware device is not connected to the computer. (Code 45)" I have updated Thunderbolt firmeware to latest version and the Thunderbolt soft,I have deleted  'Thunderbolt(TM) Controller -1577' item from device manager and reinstalled the thunderbolt several times. They didn't help..Please lenovo give me some information..

A:P70, Thunderbolt port not working

Is there anyone who has thunderbolt port working? Is there any lenovo person who can provide some information about this?Did lenovo know this issue? Is it a intel problem or lenovo problem? Are your man working on it? When this will be solved?     

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RELEVANCY SCORE 70.8

Hello

I own a Dell xps 13 9350 laptop.I'm trying to connect an external monitor through the Thunderbolt 3 port, with a USB-C to VGA adapter, but the laptop does not recognize that I've connected an external device at all.I suspect that maybe I'm missing a driver, I've tried installing Intel(R) Thunderbolt(TM) Controller Driver: "Chipset_Driver_D91CC_WN32_16.1.47.275_A02.EXE" but it was no good, still not working.How can I troubleshoot this? Could it be a different driver that's missing?ThanksShahar

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RELEVANCY SCORE 70

I'm having problems getting a TB16 dock recognized on my XPS15 9550. I updated the BIOS and the drivers indicated in the Dell Thunderbolt Dock TB16 user guide. I connected the AC adapter to the TB16 and then connected the Thunderbolt 3 Type-C cable to the XPS 15. The Thunderbolt icon appears in the system tray but -
1. I get no authentication window to select the user setting.
2. When I right click on the Thunderbolt icon to view attached Thunderbolt devices there are none.
3. Of course no devices attached to the TB16 are visible on the XPS 15.
Attached Devices -

Thunderbolt Details -

I have been previously using a usb-c to Displayport adapter with no issues. Also the power button on the TB16 does power down the XPS 15.
I guess it could be a hardware problem with the TB16 but I'm hoping somebody has seen this and has a solution.

Thanks,
Steve

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RELEVANCY SCORE 70

Hi All - I just got a TB16 to replace my old USB3 dock that had dead USB ports on it. I have followed the information in the TB16 setup guide, the driver installation guide and tried a lot of different things. The TB Controller is enabled and security is disabled in BIOS. I also turned on all the checkbox options in BIOS, and have toggled them on and off to make sure they are actually turned on. 
None of the USB ports on the new TB16 work, the sound ports do not work, and the NIC does not work. I am able to get the display ports working (using both right now, connected to USB powered Dual-Link DVI adapters connected to my good old 3007WFPs).
I have tried several "down rev" versions of the USB controller driver that is provided by Dell. I cannot even see any evidence of USB devices when the TB16 is connected with the 240W power adapter connected. However, if I unplug the 240W power adapter from the TB16, I do see some USB devices pop up, but they don't work. I have tried leaving the dock disconnected from everything for 4 days and then connecting the power adapter to it, then connecting the laptop. That did no good either.
I also tried using the recommended "disable WiFi" fix that was posted here in the forums. That made no difference. It makes no difference if the laptop is off and powered up with the lid closed or with the lid open. I also cannot use a USB keyboard connected to the TB16 on the bitlocker prompt screen, regardless what port it is c... Read more

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RELEVANCY SCORE 69.2

Hi All I have been crawling through these forums and Google in general, it seems a lot of people have similar issues. I run a T470s, I use a Startech USB-C to HDMI adaptor allowing me to connecto to 2 external monitors. I have done for many months and all was fine. I recently ran system update and found multiple drivers needed updating, I ran this and since I cannot use my external monitors.  Thunderbolt software is up to date, as per screenshot it doesnt show the controller version or details in lower half. Device Manager doesnt show the controller at all (even hidden devices). I have tried:uninstall/reinstall of TB SWrunning the firmware update tool but that just says 'No Active Controller' in the system.I have tried reinstalling every Intel driver availablethe BIOS was updated by System Update previouslyI have checked the BIOS settings and everything is enabled I found a system restore point from a few days ago which I think is before this started, rolling back to that allows the TB3 SW to show the controller version and a device showing in Device Manager but my monitors still dont work. A further reboot without changing anything takes me back to 'None' controller version and nothing in Device Manager. Open to the idea it could be my adaptor has died, I understand you sometimes need a TB3 device connected to update the FW (?) but I do not have any other devices, hoping to try my adaptor on another machine at head office next week to ... Read more

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RELEVANCY SCORE 68.4

Hello,
My XPS 13 crashes each time I try to connect the dock with Intel Thunderbolt program. I have updated the BIOS, and did all the firmwares and drivers listed in TB16 installation. 
What shall I do?

A:Dell XPS 13 OS crashes when configured to use TB16 Dock in Thunderbolt app

Which version of the XPS 13 do you have?
Did the software and Firmware update install normally without the Dock attached?
Have you tried running the Dock without any outputs connected?
Did you get any popups related to allowing certain connected devices?
Look in the Settings and Details to see what TB controller you are using and if it does not show as Unknown.

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RELEVANCY SCORE 68.4

Hi guys,
i have a new Dell Xps 15 9560 and TB16 thunderbolt dock. Everything works great, except.... If TB16 is connected to the laptop, it's impossible to shut down the computer. Instead of powering down, laptop restarts. When TB16 not connected, laptop shuts down perfectly. How to fix this? Thanks in advance!

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RELEVANCY SCORE 68.4

Ever since I got the tb16 I noticed that whenever I watch a video it would cause the machine to stutter. I notice this stutter when I initially plug the tb16 into my laptop but then it appears again when I'm watching a video. I've tried searching for a solution but nothing has worked. I've updated the bios and drivers (for the xps 15 and tb16) but the problem still remains. This stuttering and freezing would also happen but during normal usage as well but only very rarely (my machine actually froze while I was writing this post :( ). 

Any assistance would be greatly appreciated.

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RELEVANCY SCORE 68.4

Hi,
First question: Using the ASUS ROG PG279Q with TB16 and 9550 - No 144Hz possible via DP or Mini-DP. Everything fine till 120Hz but when switching to 144Hz the screens flickers like crazy. Unusable!
Tried until now:
- Drivers updated for Nvidia and Intel 
- All Drivers for TB16 installed 
- Tested on Mini-DP as well as DP of TB16
- Monior and same Cable work fine at 144Hz on Lenovo Laptop with integrated Intel Graphics
Any hints please?
Second question: Also, is it possible to force the NVidia Driver a different Refresh Rate when in use? So for example, in Desktop mode when doing office stuff I am fine with 100Hz whereas when I play and the NVidia kicks in I would want that to use 144Hz or even 165Hz
Thanks in advance

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RELEVANCY SCORE 68.4

I have only had this laptop for a month or so,  but the Thunderbolt usb-c port stopped working. I can still use this port to charge my laptop, but it won't connect to any other devices nor output video to an external monitor. Has anyone encountered this problem before? Does it mean I need to send my computer back for a repair? Thanks.

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RELEVANCY SCORE 68

We have a Dell Precision 5520 that uses a TB16 docking station that all of a sudden is having difficulties connecting to our VPN. It was fine earlier in the day. We tried clearing the DNS cache and tried a winsock reset. THe drivers are up to date and everything. 
Also tried to reboot the computer multiple times.
Even tried a K17A Dock and had the same issue.
We were finally able to get the computer to connect to the vpn once we used a usb net adapter to plug the ethernet cable into.
Tried plugging the usb adapter into the computer directly and into the dock. It worked whether it was directly connected to the computer or the dock.
It only does not work when we connect the ethernet cable to into the lan port on the TB16 and K17A dock. And only for the one computer.

At a loss, any ideas?

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RELEVANCY SCORE 68

I have a Dell Thunderbolt Dock TB16 - 240W docking station for the XPS 15 9560. It comes with a 0.5m USB Type-C Thunderbolt cable. Is there a longer cable, such as a 1m cable available for the TB16?
The TB16 was shipped from Dell with an instruction booklet entitled "Thunderbolt 3 (USB Type-C) Dock Cable Installation Guide." The book has instructions on how to remove the shipped cable and replace it with some cable that is received as a separate shipment. Does anyone know the purpose for those instructions? 
I'd like to suggest that the above questions would be a nice addition to the TB16 FAQ... adding some info on cable length, cable length restrictions, future plans for differing cable lengths, etc., might help users such as myself. I see others out there which have concerns about short cable length so that's why I think the answer to the above would make good TB16 support KB articles or FAQ entries. 
Thank you!

A:Dell Thunderbolt Dock TB16 Maximum Cable Length

The included instruction guide is just in case you need to remove the cable for replacement.
My cable is around .4 meters or 16 inches.  I do not know of other length cables are available.

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RELEVANCY SCORE 68

Looking at the documents for the dock it looks like this is capable of this setup but I cannot figure out how to get it working.
The TB16 supports 3 external FHD monitors ...., I would assume I could also have my internal laptop screen running also. Am I wrong?

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RELEVANCY SCORE 67.2

Has anyone had experience with this. I just purchased an XPS 15 9560 with a TB16 dock and I'm hoping to use the dock and my old Apple Cinema display, but I can't seem to get the monitor to work in the dock. I purchased an Apple Thunderbolt 3 to 2 adapter and the screen works fine when I hook it directly into the laptop, but I get a USB malfunctioned error when I hook it into the dock. Any information or tricks anyone else has found would be helpful. Thank you in advance.

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RELEVANCY SCORE 67.2

I have just received the TB16, that I use with my Precision 5510. I have connected my mouse and keyboard with the Logitech Unifying Receiver on a USB port. The connection works, but the mouse freezes about half of the time, and the keyboard misses many of the keys typed. So it is basically not usable. When the receiver is plugged directly into the computer's usb plug, the mouse and keyboard are perfectly smooth.
I have tried to connect the received on a DA200 connected on the Thunderbolt port of the TB16. This also works smoothly. So the problem only comes from the USB ports of the TB16 (both USB 2 and USB 3 ports).

A:Dell Thunderbolt Dock TB16 -240W & Logitech Unifying Receiver

Do you have any wired devices you could check.  It wasn't long ago the Logitech wireless devices had problems with Win 10.  
Otherwise, there are threads about the TB16 and Bios updates on other systems concerning USB compatibility.

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RELEVANCY SCORE 66.4

Hi,
I had my setup working perfectly on Arch Linux before updating my bios. The dock could be plugged and unplogged at will without crashing. After updating to the latest bios (To get the Intel ME vulnerability patch) it doesn't work anymore.
Connected on the dock:
One 1080P screen (HDMI)
Another 1080P screen (Display port)
USB mouse and keyboard
Ethernet cable
3.5mm jack to sound system

Setup that worked
Bios: 1.2.18
Kernel: 4.10.6-1-ARCH

Setup that crashes
Bios: 1.2.25
Kernel: 4.10.6-1-ARCH
Kernel: 4.10.13-1-ARCH

Expected behavior
Connecting the dock when the laptop is powered works.
Connecting the dock when the laptop is turned off and booted works

Actual behavior
Connecting the dock when the laptop is powered crashes the system
Connecting the dock when the laptop is truned off works, but mouse and keyboard don't work.

Anyone has pointers on how I could resolve this issue?
Thank you very much.

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RELEVANCY SCORE 62

Downloaded the newest Thunderbolt driver this morning. It MAYBE fixed the occasional outage problem that many are having with Thunderbolt/USB-C port adapters - jury is still out on that.
Here is what it DID NOT FIX: The fan speed. No matter what I plug in to that port, the fan revs up and stays up. 
I disconnect all USB-C adapters and revert to my USB 3.0 equivalents and everything works fine. I have a 3.0 LAN/Gigabit port and a Plugable 3.0 to HDMI adapter that are working great with no fan revving.
The minute I use my USB-C versions, that fan gets spinning. Why? Watching my Task Manager, I can see 1-4% CPU, 20% Memory, 1-7% disk. There is NO REASON for that fan to be running.
Until Dell and Intel get that Thunderbolt port dialed in, I'm staying on good ol' USB 3.0. At one level, that is frustrating as I bought the XPS 15 partly because of the promise of the "One port to rule them all."

A:Dell XPS 15 9550 Thunderbolt and Fan Speed

I agree 100%. Bottom line is that ThunderBolt 3, at least in the XPS 15 9550 implementation, is not ready for prime time.
Right now I am running with my XPS 15 closed using an external monitor connected to the integrated HDMI port, a USB 3 adapter into which I have plugged my gigabit ethernet, my usb keyboard, and my integrated monitor webcam. I also have my wireless mouse dongle connected to one of the integrated laptop usb ports and have my power adapter connected. Fan is completely silent and everything works perfectly. I should be able to connect all of that thru the TB15 dock using the single Thunderbolt 3 connection to the XPS 15 9550 with exactly the same results. Unfortunately with the current state of drivers I cannot.
I bought my TB15 dock directly from Dell. Their can't be that many of us. You would think Dell would make the effort to make sure that all of us that did would be communicated to and taken care of...apparently not. 

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RELEVANCY SCORE 62

Hi,
I have the XPS 15 9550. I bought a startech thunderbolt 3 dock. It was completely dead - no sign from the laptop when I plugged it in. They replaced it. The new one worked fine for a day. Then it too was dead - no sign that it's connected. It seems unlikely I had 2 dead models. Any ideas whether there is something on the PC that could cause this? BIOS is updated, as is thunderbolt firmware & drivers.

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RELEVANCY SCORE 61.2

After the time spent with Dell Support doing diagnostics and updating video drivers to those official Dell drivers on the support page, my new XPS 15 9550 with 4K touch display continues to struggle when using external monitors. I have two (2) Dell U2515H monitors.
I have updated ALL of the drivers and BIOS to the very latest files available on the Dell support page, including the newest Thunderbolt 3 driver.
When the laptop is NOT connected to any external monitors, I am NOT experiencing any trouble.
When the laptop is connected to ONE external monitor via the onboard HDMI port, I am NOT experiencing any trouble.
Trouble begins with the addition of ANY external monitor via the USB-C/Thunderbolt 3 port.
I have experimented with the following three adapters, all producing the same result:

Dell USB-C to HDMI (2.0), part number 047KD7
Dell USB-C Port DA200, part number 5KMR3 REVA00
Cable Matters USB-C to DisplayPort
First, regardless of which adapter. my laptop ramps up the fan for as long as the adapter is present.

Second, although the monitor works with any of the adapters at the proper resolution, all of the screens will go black about every 10-20 minutes and the displays will seem to resize and reset. In this process, about half of the time, the windows open on the monitor connected to the USB-C/Thunderbolt 3 port will either minimize or relocate to the primary display (the laptop screen). However, the laptop itself doesn't freeze. I tried running a YouTube video t... Read more

A:Trouble with XPS 15 9550, USB-C/Thunderbolt 3, and external monitors

This is apparently a problem with the Thunderbolt 3 driver/firmware and/or the Intel 530 graphics drivers. I see very similar issues using Dells new TB15 Thunderbolt 3 Dock. Normally when I'm in my home office I use my 9550 with the lid closed using an external monitor connected to the HDMI port. All works perfectly. When I try to use the Dell Thunderbolt 3 Dock and connect my external display to its HDMI port it is unstable. Sometimes the external screen goes blank for a few seconds. When the system wakes up from sleep or I reboot it it does not come up on the external display but I have to open the laptop and switch back to the external monitor. Basically it is unusable. Still waiting for Dell to fix the issues.

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RELEVANCY SCORE 61.2

I was planning to purchase a TB15 dock until I read about all the problems. Sounds like it's been taken off the market. I purchased and returned a WD15 when I realized it do not have adequate wattage to charge the XPS 15.
As such I am looking for a list of Dell or 3rd party Thunderbolt or USB-C docks that are known to work and provide at least 2 USB-3 ports, HDMI [email protected] (could like with 30Hz) port, Display Port, Headphones and power adequate to charge my XPS 15 (9550).
Does such a list exist?
Thanks

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RELEVANCY SCORE 61.2

I am not able to install thunderbolt driver on my Dell XPS 15 9550.

OS: Windows 10 Version 1709 OS build: 16299.98
Thunderbolt controller  driver version: 16.3.61.275 ,A03
This is the first installation attempt after a clean Windows install.
I have tried installing older versions from dell website and all are giving same results.

Installer returns a "Setup wizard ended prematurely because of an error" with the following errors in log.
InstallServices: Service: 
Action 10:01:22: Action1_PostInstall. SFXCA: Extracting custom action to temporary directory: C:\Windows\Installer\MSICD11.tmp-\SFXCA: Binding to CLR version v4.0.30319Calling custom action ThunderboltInstaller!CustomActions.PostInstallInstalling service ETW manifest**** Warning: Publisher {8c2ec332-c0e1-4a25-b152-8e869fc649d7} is installed onthe system. Only new values would be added. If you want to update previous settings, uninstall the manifest first.
**** Warning: The resource file for publisher Intel-Thunderbolt-Service was not found or could not be opened.
resourceFileName: C:\Program Files\Intel\Thunderbolt Software\tbtsvc.exe
Installing application ETW manifest**** Warning: Publisher {8ef15e41-05bf-5bcd-4aa8-4f0559564dc0} is installed onthe system. Only new values would be added. If you want to update previous settings, uninstall the manifest first.
Register Thunderbolt service WMI providerThe system cannot find the file specifiedCustomAction Action1_PostInstall returned actual ... Read more

A:Dell XPS 15 9550- Not able to install Thunderbolt driver

The note about a missing resource file makes me wonder if the download might have been corrupted somehow.  Have you tried just redownloading the file from Dell?  And do you already have an older version of the Thunderbolt software installed or is this the first installation attempt on a clean Windows install?

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RELEVANCY SCORE 60.8

Trying to update my thunderbolt drivers/firmware to the NVM 16 version so I can use my eGPU. 
When I run the firmware install, it fails after about 20% progress. Logs show this:
*** Dell Thunderbolt firmware update started on 11/29/2017 at 7:38:10***Command: C:\Users\...\Desktop\Intel_TBT3_FW_UPDATE_NVM16_8FDJ2_A06_4.16.00.005.exe
Starting FW Update....Power is on alreadyThunderbolt Firmware Update C:\Users\...\AppData\Local\Temp\DEL52C1.tmp\Intel\FwUpdateCmd.exe /s up1 C:\Users\...\AppData\Local\Temp\DEL52C1.tmp\Intel\0X06E4_secure.bin /s up1 C:\Users\...\AppData\Local\Temp\DEL52C1.tmp\Intel\0X06E4_secure.bin FAILED: FwUpdateExceptionsCode 0x10bSystem TBT NVM Current Version:BCD:00000008: New Version:BCD:00000008
Error: Unhandled Error
An unexpected error was encountered. Please record the error return code and report back to technical support.
Exit Code = 10 (Unspecified Error)***Thunderbolt Firmware flash finished at 11/29/2017 at 7:41:48***
Seems similar to this issue:  

Any ideas?

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RELEVANCY SCORE 60

Kind of a multi part question here.
I have a Precision 7510 and a TB16 Dock. I have the quadro m2000 graphics card. When I have my dock connected I connect a display port cable from my dock' s display port out to my dell 4k monitor. The max resolution is either FHD at 60 hrz or 3840x2160 at 30hrz. The 30hrz option is not acceptable for me. I end up trying it with a mini display port to the dock with a display port to the monitor adapter cable that came with the monitor. That gives me the full 3840x2160 resolution.
Two questions here.
1 why am I not getting proper output from the full size display port on my dock and is there something that can be done to correct it as I think I should be able to connect another 4k monitor and was thinking about getting another of the dell ones but don't want to unless I know it will work.
2 I see a lot of info on the different revisions of both display port and hdmi. I think the latest display port revision is 1.4 or something and  hdmi is 2.1. What version is my machine able to support? In looking for help online with question 1 I found info that makes me believe it could be related to what version of display port is supported by my machine. That is why I am looking for that info.
Thank you
Matt

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RELEVANCY SCORE 60

Same issue. Latest Thunderbolt Firmware update made my HDMI output unusable. I can not connect to an external monitor. We need a fix ASAP! Dell technical support was unable to help so far...

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RELEVANCY SCORE 59.6

Bonjour,
 
J'ai acheté ce portable neuf par correspondance et j'aimerais savoir ce que j'ai comme port sur le côté droit de l'ordinateur. Je devais avoir un port Thunderbolt 3 mais il semble que ce soit un port mini-display. J'aimerais que l'on me précise la réaliser à l'aide de l'information suivante :
 
HP Spectre Pro x360 G2 Convertible PC

X5G74UT#ABA
HEWLETT-PACKARD INC. 136642
NOTEBOOK/TWO-IN-ONE/CORE I5 6300U/2.4GHZ/8GB-DDR-1600/256GB SSD M.2/13.3IN/W10P 1
REC701
 
Mon objectif était d'acheter une Docking station du type Thunderbolt 3. Est-ce que je le peux avec cet appareil ? Sinon, que me recommandez-vous comme docking qui contient le maximum de ports pour cet ordinateur ?
 
Merci
 
Henri Frappier

A:Port Thunderbolt 3 ou port mini-display

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RELEVANCY SCORE 55.6

I have a HP ZBook 15 G3 Mobile Workstation (Engery Star)- Product Number - V2W12UT#ABA. It has 2 USB Type C Thunderbolt Enabled Ports.   Not quite what it is used for.  Can you use a thunderbolt adapter for an Ethernet cable which uses Giga Power and a HDMI Cable, etc.  Basically the thunderbolt adapter would have more than one port.  Am i understanding this correctly?  If so, what product do you recommend?  

A:Thunderbolt Port

Again, I have that same laptop and I happen to have in my bag a thunderbolt/USB-C to HDMI adapter and one that has a gigabit ethernet and 3 x USB 3.0 ports. HP also makes a Zbook dock I am using which has a DP and an HDMI, VGA, gigabit ethernet, a few USB 3.0 and a couple extra USB-C ports.  P/N P5Q58UT#ABA There are lots of adapters with multiple functions. Thunderbolt can allow some really amazing number of additional devices to be connected through one port like I believe 4 x 4K monitors.

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RELEVANCY SCORE 54.8

Was working fine until today. Looks like the thunderbolt cable's symbol is no longer lighting up and nothing is being transferred to my laptop (usb's, dvi, ethernet cable). Has the cable defected in this case? I only had this dock for 2 weeks

A:TB16 stopped working

The dock cables are actually removable, so if you happen to have access to another TB16, you can try swapping the cable with a known good unit.  The manual available on support.dell.com shows how to do it, but basically there's a screw hiding under a rubber foot/flap on the underside of the dock where the cable attaches.  Sorry to hear you're already having trouble!

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RELEVANCY SCORE 54.8

Hi, I think I'm having some problem with my Yoga 920's thunderbolt port. I bought a StarTech thunderbolt 3 dock. When I first time plug in the dock, everything works fine the thunderbolt software pops up and ask me the authorized the new dock. And I click always trust this device. Then the windows crushed with a blue screen and a QR code on it. After 920 restarted, and I tried the dock again, it was identified as USB 3.1 hub but no USB connection. And when I tried to open the thunderbolt software, it shows me the following warning.I tried to update the driver, but the installer said it was all ready. And then I downloaded HWINFO64 to check, I could not find the thunderbolt 3 controller under the PCI-Express X4 BUS. Is that means my thunderbolt 3 port is broken? What should I do with this? Btw, when I plug in the thunderbolt 3 dock, the powersupply is also connected, and the dock also provide the power, two power supply input at the same time, will that be a reason of the crash which also burn the thunderbolt 3 controller? Thank you. 

A:Yoga 920's thunderbolt 3 port

Just tried USB 3.1 card reader, port's usb function works well. 

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RELEVANCY SCORE 54.8

Is it possible to use this port as a simple USB 3.0 port ... no Thunderbolt?  USB-C to USB-3.0 adapters are readily available, and this would provide an extra (3rd) rear USB port; useful when the dock isn't there and extra USB ports wanted.

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RELEVANCY SCORE 54.8

Hi,I have a P70 and external Samsung T5 SSD. Currently, I have Window 10 pro installed on main HDD (Toshiba) T5 is connected to Thunderbolt/USB-C port (With USB-C to USB-C cable) (Windows see the drive) When I reboot and go to boot menu (F12) T5 SSD device does not show up.If I connect T5 SSD (with USB-C to USB3.0 cable) the T5 device will show in the F12 boot menu.I do not have an OS installed yet, I was just testing to see if/when the device shows up as option.Is booting a device from Thunderbolt/USB-C port supported?I found an older post saying no, but that was from 2016 with older BIOS. Is this supported in latest BIOS? ThanksDoug

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RELEVANCY SCORE 54.4

Hello, 
This morning I came back to the office and the DisplayPort is no longer working. I had 2 Dell monitors plugged into TB16, HDMI + DP - both through DVI adaptors.All worked fine for a week. I would unplug my XPS, go home, return back, plug the TB16 back in every morning. All was fine. 
Last Friday evening I disconnected my TB from my XPS 15, cut the power to the TB16 (and the rest of the office for that matter...) and left home. 
Today I came back turned the power back on, plugged in my TB16 into my XPS and... everything as it was save for the DP.  I tried the following: 
1. Switching between monitors
2. Unplugging/plugging everything possible
3. Restarting my pc
4. Restarting TB16
5. Installing all updates from DELL
Unless my DP to DVI adapter died over the weekend (while being off), I don't know what might have happened and how to solve this. 
For the time being, I went back to having HDM + VGA, which isn't what I prefer, but it works for now. 
Any advice is appreciated. 

A:TB16 DisplayPort stopped working

If you've already unplugged the power from the TB16 to reset it and you don't have a way to rule out the adapter (no native DisplayPort display or other dock to try connecting the adapter to?), then it's tough to conclusively determine underlying cause. It would either be a bad adapter or I guess a TB16 that died.

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RELEVANCY SCORE 54.4

I'm using the thunderbolt port for a single connection to a Dell usb-c dock (power in, KVM out, speakers, network, etc.).  The 720 charges real slow and the battery status message (in Lenovo Settings app) states that the "AC adapter cannot provide enough power for normal operation of your computer".  The Dell usb-c docks are powered with a 180w power supply that provides 60w of power to the computer, which is more than the 45w power supply that comes with the 720.  I have tried 3 different Dell docks, including a Dell thunderbolt 3 dock with a 240w power supply. I have to believe this is an issue with the Thunderbolt 3 driver on the 720 or something BIOS related.  BTW, the 720 has Windows 10 pro loaded (updated from the home version loaded by default) and Bitlocker enabled.  Don't think these changes have anything to do with the issue. I purchased Lenovo's thinkpad usb-c dock (which states that it's universal) and hope it charges the 720. 

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RELEVANCY SCORE 54.4

Hallo, kennt jemand eine Quelle für Magnetadapter für Thunderbolt USB-C Port der auch Datenübertragung unterstützt?Darüber möchte ich nicht nur das Gerät aufladen sondern auch die Dockingstation anschliessen.Der Adapter muss also Datenübertragung unterstützen.Grüße

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