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No power on Thunderbolt Dock

Q: No power on Thunderbolt Dock

I just picked up the TB3 dock and all seems to be working, however it is not charging my laptop using the included Thunderbolt/Power combo cable. The power light shows on the dock, and connected devices work on laptop, but no power. Any ideas?

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RELEVANCY SCORE 200
Preferred Solution: No power on Thunderbolt Dock

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RELEVANCY SCORE 78.8

I used the Lenovo System Update (v5.07.0074) and was prompted to download and install (was listed as Critical Update) the Firmware to my Dock.  As always, I closed all applications and sat as the Firmware downloaded. I got the expected prompt to ensure I was plugged in. I then watched as the upgraded prompted me to install. Installation completed and everything appeared to be fine.  I powered down the thinkpad and disconnected. Worked from the living room, then went back to the dock. Connected, and noticed that before I connected the White light on the power button was illuminated. Shrugged, and pushed the power button. Nothing. I un-plugged the Dock, got a cup of coffee, returned and plugged it back in. Nothing. I then noticed that none of the pass-through power was working on the dock.  So, I unplugged it again.  Unplugged everything connected to it, and held the power button down for 15 seconds in an effort. All of this at the recommendation of Lenovo Support. Who, by the way, was very nice and well spoken. Nothing we did worked. I happened to have another Thunderbolt 3 cable in my bag, and no change. I powered up my new X1 Yoga, and connected the cable. No power. This wasn't passing power at all. I confirmed the Intel Thunderbolt app was running, and confirmed that Windows was not even detecting the Dock.  Lenovo is sending me a replacement. I had this one all of a week. Did I miss any other steps while I wait for it to be repl... Read more

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RELEVANCY SCORE 78

The cable is broken, and I cannot find anywhere to buy just the cable.I cannot believe that I need to buy a new package (dock, cable etc,) when I just need the cable?

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RELEVANCY SCORE 76.8

I purchased the Thunderbolt 3 Dock with my Yoga 920 as it was listed as an accessory during my Yoga 920 purchase back in November.  I finally got around to setting it up and I can't seem to get the power button the dock to turn on my laptop.  The button glows white when my laptop is plugged in but the button will not turn the laptop on.  I have my power button option in Windows set to "when i press power button while plugged in, the laptop will go to sleep."  So even while the laptop is connected to the dock via USB-C/thunderbolt and the laptop is on, when I push the power button the dock, it doesn't put the laptop to sleep either--it does nothing. Googling around, I see there is a newer dock called USB-C dock and it's listed as compatible with the 920 whereas as the Thunderbolt 3 Dock is not listed as compatible.  Could this be the issue?   I also have thunderbolt software installed and it detects the dock in the software. I need some help please!

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RELEVANCY SCORE 76

I have a 6th Gen X1.  One of the thunderbolt ports no longer works with the monitors on the docking station - the keyboard and mouse do work.  The monitors do work when plugged into the other thunderbolt port.  I am worried that one will stop working too.   I do not know of any damage or issues and I ensured the latest drivers were installed.   Any ideas on how to troubleshoot? 

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RELEVANCY SCORE 75.2

(Don't know what happened to the first one I posted... Posting it again.) Hey group, While testing the performance of the SSD in my X1Y3 with CrystalDiskMark, I noticed a drastic performance drop in 4KiB Q(ueue)8T(hread)8 when connected to the Thunderbolt 3 Dock as compared to connected to AC power:  Dock: Random Read 4KiB (Q=  8,T= 8) :   318.764 MB/s [  77823.2 IOPS]Random Write 4KiB (Q=  8,T= 8) :   256.349 MB/s [  62585.2 IOPS] AC Power:Random Read 4KiB (Q= 8,T= 8) : 943.671 MB/s [ 230388.4 IOPS]Random Write 4KiB (Q= 8,T= 8) : 1024.264 MB/s [ 250064.5 IOPS] I noticed that with the Dock, the CPU usage during the test was only about 50%, whereas on AC power it was about 100%. (See the attached pictures). With the performance drop, I also heard very audible "coil whine". I can't quite tell if it was only coming from the dock or both the dock and the laptop. All connected devices were unplugged from the dock. The only two cables connected to the dock were the AC cord and the Thunderbolt 3 cable. The noise is NOT heard while using AC power. I thought the noise was just annoying before, but now with this performance drop, I'm a bit more concerned... Based on my experience with Lenovo Tech Support, I don't think I'd get any real advice from them. I was wondering if anyone else noticed the same issue and what do you think is causing it?  Thank so much for your help! ... Read more

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RELEVANCY SCORE 72.4

I used System Upate to install the latest Lenovo Power Management Driver 1.67.14.05.  After this, I've noticed that my external speakers which are plugged into the Thunderbolt Dock pop whenever there is some sort of audio/video on the screen right as it loads or after leaving a web page even if no video/audio is actually playing.  This also occurs outside of just webpages, with an application that gives me audio notifications, there's a subtle pop before the sounds plays as well. I isolated the issue down to the Thunderbolt Dock only.  If I plug my speakers into the laptop directly and use the built-in Realtek HD Audio, no issue at all.  Something changed with regards to how audio is output through the dock and/or with this latest Power Management Driver update.  It's actually very annoying the popping sound that the speakers make, especially when they're turned up loud.  I tried some old solution that was Windows 10 specific with changing the minimum processor % while plugged in to 100% instead of the default of 5% in the power settings but that didn't help at all.  I'm pretty confident that this latest driver is what introduced this new issue. Anyone else experiencing this same issue, feel free to comment.

A:P52s -After Newest Power Mgmt Driver, Speakers Make Popping Noise When Connected to Thunderbolt Dock

Also, to clarify, the speakers are Logitech Z623 using the 3.5mm input.

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RELEVANCY SCORE 63.6

To back up Dell-Brian B's threads you can find all the available Dell documents for the Dell Dock and Dell Thunderbolt Dock here. 
TB

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RELEVANCY SCORE 61.6

HP ZBook Dock with Thunderbolt 3 usb device issues. USB Keyboard randomly sends a stream of a repeated character.  I will be typing and mid worrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr d will get results like in the word above.  The inverse happens alot too, were it just drops a few characters i have typed. USB Mouse lag is horrible. Both devices will stop functioning, need to reboot the dock to recover them. Any one have any suggestions or which drivers are the most stable?

A:thunderbolt dock

#HPExpertDayYou will have to update BIOS/Firmware if any. Install the docking station drivers. Try using a different keyboard, if the issue stops then issue was with keyboard.http://support.hp.com/us-en/document/bph07165

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RELEVANCY SCORE 60.8

As the only docking solution available and moving from a more traditional dock, its less than suitable.  HP needs to make a longer cable and the end that connects to the laptop should be at a right angle.  The cable is so stiff and thick it takes nearly 4" to make the turn.  HP makes it impossible to find this out how long the cable is with out purchasing and at that point your stuck with it.  Hardly a customer satisfaction issue they should want to propigate!

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RELEVANCY SCORE 60.8

Is the new ThinkPad Thunderbolt 3 Dock compatible with P50? Dock details page (https://pcsupport.lenovo.com/cz/en/solutions/acc100356) only list P51s, but not P50. But P50 claims support for Thunderbold 3. If yes,  can I connect Ethernet LAN over the dock? And what driver I need to install?    

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RELEVANCY SCORE 60.8

Hi  I have 2 new L480 (20LS-001AMX) and 2 new Thrunderbolt 3 Dock (DBB9003L1)Is there some way to get this type of dock to work with the L480? Note: in the Dock spec. the L480 are not mentioned are compatible.Could it work any way? Mikkel

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RELEVANCY SCORE 60.8

For some reason, i can't turn on my new P51 using the power button on the Thunderbolt 3 dock.   I'm sure i've got something hooked up wrong, but thought i'd check here.   Is there a setting in Control Panel (power button) that i need to change?  In order to use my laptop / view from my external monitor, i have to open the lid to the laptop, power on and then i can use the external monitor.  thanks for any help. 

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RELEVANCY SCORE 60.8

I have a new ZBook G3 17" with ThunderBolt 3 dock station.I have install my laptop with boot up finger&password protection.I have connect display, keyboard and mouse to this dock.Every time  I bootup, I have to open laptop to insert access data.This look like a stupid solution compare the old HP docking station that I have on my HP 8760W where dockingstation are working from first second and I can insert my access data (password) without opening lid.There are any solution to this problem ?I have also another problem. On the old PC was possible create a protected area of HD using a little part of it withHP ProtectTools. This SW is not possible to install on ZBook G3.I don't found any solution to create it. Only using Windows 10 (that I don't want to use) functionality.More we go on and worst SW/HW are delivery to user. AC

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RELEVANCY SCORE 60.8

Hi allWell we all now about the fan issue which is much better since the last BIOS update.Nevertheless I have sometimes fluctuation fan noise, although there is no load. This is mainly when the notebook is at the thunderbolt docking station.I found out, that as soon as I connect my notebook to the docking station more or less all app-processes suddenly move over and start running on the GPU. The CPU has virtually no load.Why do all processes start to run on GPU when the notebook is connected to the dock? Is this an issue or is there a good reason for this behaviour?My Notebook and Windos has the latest drivers/bios and updates installed.Regards,Sebastian

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RELEVANCY SCORE 60.8

So I have an X1 Carbon Gen 5 (Kaby Lake) and the Thunderbolt 3 Dock Gen 1 (40AC0135US). I bought two 4k monitors and after several frustrating hours figured out that the Gen 1 dock can't output 4k on two externail monitors at 60hz, this appears to be a dock limitaion only. I see that you now have a Gen 2 dock (40AN0135US) that says it will do 2x 4k @ 60hz, only problem is that every compatability cross refrence I can find does not say the gen 5 X1 Carbon supports this new dock. I don't see a good reason for it not to be compatiable, but wanted to find out for sure one way or the other before I bought it, as it is not cheap. 

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RELEVANCY SCORE 60.8

I have a user with two LT3053s (2560 x 1600) and his previous T440 + Ultra Dock (I believe) supported the full resolution at 60 Hz (again I believe).  I upgraded him to a T480 and our standard Type-c dock that we deploy limited the screens to 1920x1080 @ 60Hz.  After this and complaints from the user of headaches from the drop in resolution we purchased a TB3 Gen 2 Dock and even after plugging the dock in to the actual TB3 port on the laptop (not the top type-c port) we are having issues with not all of his devices working, namely the kb+m. Any ideas here?  Right now we are running it with the 135W power adapter that it came with, but there is also another power adapter available that did not come with the unit we purchased.

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RELEVANCY SCORE 60.8

Hello all,I bought a Yoga X1 2018 and during the shop they suggest the Lenovo Thunderbolt 3 Dock. Since I thought that having to disconnect only one cable when bringin the laptop from the desk to the meeting room would have been useful, I bought it.With my disappointment I setup everything and I did some tests on the laptop just to discover that the performance of the laptop when powered through the docking station are 1/3 with respect to when it's powered by the 65W power supply and 1/2 of when the laptop is on battery... (234pt vs 640pt vs 563pt | dock/65W/battery)Now since the docking station has a 135W power supply, I really can't think that this is an issue with the supply from the docking. Also since the laptop is even faster on battery I really don't understand how it could be related to the power supply... anyway I've connected both the 65W power supply and the docking and the performance are back to normal.Is there anyone who can suggest me what's going on or how to report this to Lenovo?

A:Thunderbolt 3 dock & Yoga X1 3rd gen

Hello,i have the same setup (X1 Yoga 3rd Gen + Thunderbolt Dock)  and dont experience less or different performance.I have 2 monitors with display port and couple of USB devices connected to the Dock. Also using 2 external and the Yoga monitor at the same time was never a problem.What tests have you done to measure the performance?best regards,AT

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RELEVANCY SCORE 60.8

We recently started using Bitlocker with a PIN at startup. On all our laptops using the "old"-type dock, that you click your laptop into everything is working fine, the users put the laptops into the dock, turn it on, type in the Bitlocker PIN using the external monitor and keyboard, and then processed into Windows. Our problem is with everyone using the new Lenovo ThinkPad Thunderbolt 3 Dock. When the users connect the laptops to the dock using the cable and then power on from the dock, the laptop will power on (the LED in the ThinkPad logo lights up) but the monitors and keyboard connected to the dock is not working, and then after some time the laptop will power off again. We currently use a workaround where the users power on, type in the Bitlocker PIN and login to Windows before connecting the laptop to the dock, but this not a proper solution. We have Enabled both "Thunderbolt(TM) device" and "USB device" under "Support in Pre Boot Environment" in the "Thunderbolt 3"-menu in BIOS, but it still doesn't work. Have anyone else experienced this problem? Or does anyone know of a proper solution.

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RELEVANCY SCORE 60.8

I want to buy the Lenovo Yoga 920 (i7 with 16 GB) and I?m used to work with 3 external full HD Monitors. Since it has 2 Thunderbolt ports, it looks like the Thunderbolt 3 Dock may work with the 920. However, it is not listed on the compability list for the dock. Therefore: are the dock and the 920 working together?  

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RELEVANCY SCORE 60.8

https://support.lenovo.com/us/en/solutions/acc100356 Hello I have the new X1 carbon laptop (5th gen).  I also have two 24 in thinkview external monitors with hdmi/display port inputs. If I buy the above adapter will I be able to run the two external monitors in extended mode so I have can have three different screens  total (laptop screen, monitor_1, monitor_2)?  

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RELEVANCY SCORE 60.8

I connected my P1 to my existing Thunderbolt 3 dock and to my pleasant surprise, the system was in charging mode when the system was off. I thought that the unit could only charge through the slim power connector port, but it seems that it will also charge through the Thunderbolt 3 port when the system is not running.

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RELEVANCY SCORE 60.8

Hi,
I've seen that the Thunderbolt TB15 Dock is not valaible anymore in Italy due to hw problems. Do you know if a new one is arriving?
Thanks

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RELEVANCY SCORE 60.8

So I have a Precision 5510 laptop with Xeon processor, no 4K screen.  My question is about this thunderbolt dock TB16.  I have one HDMI out and was asked if I can make that work on 3 external monitors.  None are 4K.  Is that possible?  Can it function as extended desktop, not duplicated? And if so, is that 3 external plus laptop? Or is the laptop screen on of the 3? 

A:Thunderbolt Dock & 3 Monitors

Depends on resolution - see this article for more information:
www.dell.com/.../SLN301105

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RELEVANCY SCORE 60.8

Love the concept of the thunderbolt 3 dock, can't fathom how it was designed though.  On my zBook 15 G3, the power and thunderbolt ports are on the right side of the laptop.  The dock has the cable port on the left rear side, completely crossing over all the ports when you put the dock on a desk with the back facing away from  you.  Then they ship a cable that is barely long enough to put the dock directly behind the laptop and connect it.   Where do I buy a longer cable HP, please!

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RELEVANCY SCORE 60.8

I have a Yoga 370 (Win10) and a Thunderbolt 3 dock & Thinkpad USB-C dock and i cannot get them to play nice. I am using the USB-C cord on both devices, it transmits video and power but not USB or Ethernet. I have downloaded drivers and firmware from Lenovo and still no luck, the computer does not see the dock BUT the video and power are there. I changed my BIOS settings per the firm ware update well and no luck. any help would be much appreciated!

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RELEVANCY SCORE 60.8

Hi,I have a Thinkpad P50 and today my Dell Thunderbolt Dock arrived.Unfortunately, it doesn't work  (= it is not recognized in any way), although Dell specifically says that the dock also works with non-Dell Thunderbolt 3 machines. I have installed the Thunderbolt software from the P50's driver site and updated to BIOS 1.17.Lenovo released an "Intel Alpine Ridge Thunderbolt Firmware" for the P70. But there's no such firmware update on the P50's site, just the Intel Thunderbolt Software from November.The 1.17 UEFI/BIOS Update says it fixed a Thunderbolt issue, but apparently not mine Has anyone ever gotten some Thunderbolt 3 device working on the P50? I just hope this will be fixed soon, because the Thunderbolt dock seems to be the only convenient way to drive three 4K displays with the P50 (2 via Thunderbolt 3, 1 via miniDP).  

A:P50: Thunderbolt 3 dock not recognized

What's the model number of the dock?  Thanks!

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RELEVANCY SCORE 60.8

I have a new P51, 64 GB ram, SSD hard drive. Ihave a docking station at work and one at home. The one at home has a 6 TB Seagate BarraCuda pro USB3 drive attached. When I dock the laptop at home, the system will not boot. It gets to the bios boot sceen and stays there until I turn off or disconnect the USB drive. Once I do that, it continues to boot and if I turn the USB drive back on, it works fine. If the drive is my old 1 TB barracuda, it boots normally.  

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RELEVANCY SCORE 60

With the issues of USB port enumeration apparently resolved, I've started rolling out zBook 15 G3s to our users.  I've discovered in doing so that the dock does not appear to support Wake-on-LAN.  Is there an option to enable this functionality or perhaps is this functionality on the roadmap to be added in a future firmare release? Thanks, Stan

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RELEVANCY SCORE 60

Hi.  Hoping that someone can provide a little guidance, and show me where I must be doing something wrong. T480 (20L5 model) running Windows 10 1709 (Core i5, 8th Gen Intel)Thunderbolt 3 Dock (40AC model)Installed Thunderbolt Software is:  17.3.74.400System BIOS is:  1.12BIOS Thunderbol setting:  Security Level - No Security When I connect the dock to the laptop via Thunderbolt 3 connector, the laptop DOES draw power.  So I know that it basically works.What it does not do is anything else.  Connecting ethernet, usb keyboard and mouse, or even VGA monitor has no results. Des anyone have any suggestions about what I might be doing wrong here?  Other settings to check?  Or am I possibly dealing with a faulty component? Thanks in advance for any suggestions. Chris

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RELEVANCY SCORE 60

(For those of you who have followed my previous threads, I've now ordered a T580 with 4k display). I'm looking for a T3 dock which can do the following on a T580. It would allow me to use just one cable to dock/undock it: 1) Attach a screen with a 2560x1440 resolution with 60Hz (digital connection)2) Attach a screen with a 1920x1200 resolution with 60Hz (digital or VGA connection)3) Full Ethernet port4) Charge the laptop (originally, it comes with a 45W power adaptor)5) Have at least 1 classic USB 3.0 port Unfortunately my budget is limited so that I can't go for the original Lenovo one. If there's a dock which can all the above except for attaching two screens, then this would be ok as well, for the time being (assuming I can run one screen via the dock, and the other screen directly from the HDMI of the T580). Then it would just be 2 cables for docking/undocking...  

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RELEVANCY SCORE 60

So I got a brand new Yoga 370 and just got me a ThinkPad Thunderbolt 3 Dock. I have connected it to my laptop through a Thunderbolt 3 (40 Gb/s) USB-C cable male-male 5A, which supports power supply up to 100 W. I have plugged in the dock itself with a Lenovo original cable of 90 W. I also plugged in a HDMI cable from the dock to my monitor. After plugging in, my computer automatically installed the Thunderbolt software, package version 17.3.74.400. It also says I have the Thunderbolt controller generation 15BF, firmware version 4.04, installed now. Monitor works fine. But my Yoga is not charging. I tried to restart the computer, unplug the dock, and I even installed the Lenovo Power Management software from the Lenovo website, which I assume is then the latest version. Any ideas of what could possibly be wrong here? It is a bit of a disappointment as I was hoping this would work perfectly fine right away. I spent some 50 dollars on the USB C cable and another 150 on the dock itself. Thanks 

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RELEVANCY SCORE 60

Hey There We have bought 15 Studio G3s and docks to go with them We have ran into issues with about 40% of the docks. Not sure if its the docks or laptops causing the issues. One laptop tries 3 diffrent docks, USB and Ethernet wont work. Another laptop will randomly BSOD, if the dock is even touched it will BSOD as well. I've gone though all the posts about these issues from last summer but nothing really seems to help. Is there a newer fix that I am missing somewhere? Thanks Josh 

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RELEVANCY SCORE 60

I have an X1E and a Lenovo Thunderbolt Dock 3 (40AC0135AU). I have noticed that when plugging the dock into the X1E it's temperatures increase. Additionally the top surface where the thunderbolt 3 port and charging port are located becomes quite noticably hot.  I only have an ethernet cable, and a USB speaker plugged into the dock, and also have the X1 135 AC charger plugged in. I have tried plugging the Thunderbolt cable into the front and back of the dock (only the rear of the dock provides charging), but no difference.  Anyone know why the increased in thermals? Is this just what happens when you use Thunderbolt with an X1E, or this dock?

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RELEVANCY SCORE 60

I have a thunderbolt 3 dock that is useless charging this yoga 370 up. Plugged into the dock it either loses charge or takes upto 6 hrs to reach full charge. Plugged directly into the yoga; charge time = 1hr. Any ideas how to fix this? Thanks













Solved!

Go to Solution.

A:Thunderbolt 3 dock doesn't charge

Firmware update appears to have fixed it, or pot luck. 

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RELEVANCY SCORE 60

The X1 carbon 6th Gen supports Thunderbolt 3, yet it is not listed as compatible with the Thunderbolt 3 Dock Gen 2. Anyone have an idea why? Also the ThinkPad T470s.
 
https://support.lenovo.com/us/en/solutions/pd500265
 
The X1 Yoga 3rd Gen and X1 Yoga 2nd Gen are listed as compatible. Perhaps it just means that the dock has been specifically tested with the listed models? Surely Thunderbolt 3 is Thunderbolt 3 and the dock should work with plenty of other Thunderbolt 3 machines?

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RELEVANCY SCORE 60

I just received my HP ZBook Studio and Thunderbolt Dock. I updated all drivers and BIOS. However, there is no internet connection through ethernet when I connect RJ45 to the dock. Am I missing something? Is it possible to have hardware related problem? Thanks,

A:Re: Ethernet on thunderbolt dock won't work

I am posting this through a Zbook G3 connected to a Thunderbolt dock with ethernet connected to the dock ethernet. Did you specifically install the package of dock drivers? Are you seeing crippled devices in device manager?

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RELEVANCY SCORE 60

Hi There, I'm having trouble with a Lenovo P52 with a Thinkpad Thunderbold 3 Dock. When I Conect my dock to my laptop it wil ask if i want to allow it. (It always asks strangely. Even if its in managed Thunderbolt devices.)  After pressing ok the problems start.-Shortcuts are flickering on the Desktop and in the taskbar.-Not being charged-No Mouse & Keybourd-No Ethernet.-External screen does work but with above problems. Additional information:-With only the powercord and usb-c into the Lenovo Laptop and nothing else in the dock it stil gives the same problems.-Tried with difirent cables.-Tried other Docks but same problem. (Docks that work with other Lenovo laptops)-It works somtimes. once every 5-10 tries. But fail right after trying again.-No Faults in Lenovo center. Product information:Lenovo Vantage InfoLenovo Thinkpad Thunderbold 3 DockModel Number: DBB9003L1 I have updated the most drivers that would be needed for the thunderbolt & Lenovo but nothing seems to work. Is there anyone who has been batling this before or somone who could help me?

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RELEVANCY SCORE 60

I've set up my Thunderbolt 3 dock. I notice in the status, it shows "94% available (plugged in, not charging)". It has been like this for the past two days. Does the battery have to reach a certain threshold, before charging? Or is this normal? My last dock, with the 8570W would always charge to 100%.

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RELEVANCY SCORE 60

hello, we have a brand new spectre. first the device is amazing, i love it. but we have the following problem with the  HP Elite Thunderbold 3 65W Dock, if the Spectre is connected over Thunderbold Cable and on the Dock with Thunderbolt/Power combination cable connector, One 4.5mm power input every Device is working, Network is working, USB, both Display Ports are working, but the Spectre does not charge. i have installed the newest FIrmware Update  for the Thunderbold Dock Driver and i have updated BIOS, Intel Thunderbold Drivers on the Spectre. We have changed also the Thunderbolt 3 Dock with an new one, same problem.  one thing, on the front the light is off and i cannot turn on the spectre with the button.  any ideas, hints??? and yes i have connected the spectre over one of the 2 thunderbold ports, because the spectre has only 3 usb-c ports but 2 of them have thunderbold technology. i see also that the tb3 dock is recognized in windows at the thunderbold software.  kind regards, sebastian   

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RELEVANCY SCORE 60

All, Can you use the T480 with the Lenovo Thunderbolt 3 Graphics Dock that has the external GPU.Look for the solution to attach 3 external 2560 x 1440 monitors (DisplayPort and/or HDMI) at 60 Hz. Also would the 40AJ0135US Ultra Dock allow me to use the 2 x DP and 1 HDMI at the same time. Thanks

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RELEVANCY SCORE 60

In short: can you recommend a graphics dock suitable for the Yoga X1 2nd gen? I just got this decked out ThinkPad Yoga X1 (second generation) and all it really needs to crush graphics-demanding games is an external graphics card. I've read articles about using Thunderbolt 3 graphics docks for just this use case, and I've read about a specific Lenovo Thunderbolt 3 graphics doc which appears to be only compatible with one model (not mine). What I can't find is anything about plugging one of these into my computer, or if it supports such a thing at all... Can any computer with Thunderbolt 3 use generic Thunderbolt 3 external, self-powered graphics cards?

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RELEVANCY SCORE 60

Since the last Thunderbolt firmware update the DP ports no longer work. No matter what settings you try, no signal is detected. The only way to use monitors now seems to be to use the front USB-C port and connect it to the first monitor and then use DP daisy chain from monitor 1 to monitor 2. We have 2 Thunderbolt docks with the Update installed and both have the issue. We have one with the stock firmware and it works flawless.  Anyone else having the same issue? Any idea how to fix?

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RELEVANCY SCORE 60

The Thunderbolt dock is advertised as being able to use multiple 4k displays. I have one 4k display connected via displayport, yet max resolution available is only 1080/60. I have the lid closed on the P1 and only one 4k display connected.  Apprecaite any help. thanks 

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RELEVANCY SCORE 60

The thunderbolt dock was working.  I was gone for a week.  Came back and plugged laptop into dock.  No longer works.   The dock will charge the laptop, but none of the devices are recognized. Drivers are up to date.

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