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USB sleep bug - Thinkpad X1 Carbon G5/Thunderbolt 3 dock

Q: USB sleep bug - Thinkpad X1 Carbon G5/Thunderbolt 3 dock

I have a bug that is fairly repeatable where when my laptop goes to sleep, the USB ports on the Thunderbolt 3 dock are not active when I wake the computer up. I can unplug the TB3 cable and plug it back in to regain access to the ports. Where can I report this issue?

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RELEVANCY SCORE 200
Preferred Solution: USB sleep bug - Thinkpad X1 Carbon G5/Thunderbolt 3 dock

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RELEVANCY SCORE 118

Hi!I just got a new "X1 Carbon 5th Gen - Kabylake (Type 20HR, 20HQ)" and a "X1 Carbon Thunderbolt 3 Dock". I have an external screen connected to the dock and it works fine (VGA connection). I also have an other monitor with display (DP) connection that I want to use. But my computer can't find the other monitor, only the one with VGA connection. Is there any easy ways to fix this problem?Best regards

A:ThinkPad X1 Carbon 5th gen can't connect 2 external monitors in X1 Carbon Thunderbolt 3 Dock

[Posted moved and topic edited for discoverability.  AG]

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RELEVANCY SCORE 110.8

Anyone have a fix for the x1 carbon laptop going to sleep mode very quickly (1-2 minutes) while using a lenovo docking station?  It doesnt happen when i use the laptop without dock.  Ive tried all the normal setting in windows.  they are set to 15-20 minutes.  It still happens.  Ive updated the drivers for the docking station.  It still happens.  This is also an issue with an employee's 4th generation X1 and a USB-C dock.  After waiting for 25 minutes on lenovo chat and no one responding, i called in.  They spent 30 minutes playing with the same settings then said it was a software issue and transfered me to another department.  They tried to charge me $200 to fix the problem.  My laptop and dock are less than 6 months old.  I'm extremly upset with lenovo!  

A:X1 Carbon with Thunderbolt 3 dock going to sleep mode quickly

Gets even better. I called back into the original number and they said "what i do with my computer is not their problem. Since it works (even though briefly) then its fine"

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RELEVANCY SCORE 90.8

Hi, all. I have a problem thunderbolt is not charge notebook, but usb ports and displayport working.1. I connect the Laptop with the Thunderbolt connector on the backside of the Dock (beside the HDMI/DP connectors) and on the frontside, not working.2. I updated all drivers.3. I go into the BIOS and "disable the battery for technical service".But if I use an AC power adapter, it charges.Does anyone have a solution?

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RELEVANCY SCORE 90.8

I recently purchased the X1 CRBON 5TH Gen (2017)...type 20HR plus a thunderbolt dock.I connected them together with a Dell 28" 4K (@30Hz) screen (p2815q) connected through DisplayPort from the dock, plus a Microsoft keyboard and Jabra 510 USB speakerphone.Using the Windows 10 stock image from Lenovo, plus Office 2016, Chrome, Visual Studio, Skype,  and various other apps (putty, RDP, SAP GUI, others) the video performance was atrociously bad. Alt-Tab, which I use heavily would take 3-4 seconds to respond, switching between applications, Windows would freeze and sometimes crash, I would often get blank or black windows in Chrome and Office. This was on the embedded Thinkpad screen as well as the external monitor.I ensured Windows Update was up to date, as well as Bios, Drivers etc through the Lenovo companion app. So...I dove into the BIOS and voila! There is a switch that lets me change the Video memory from 256 to 512 MB allocated!I went to change it, and it would not change until I changed the setting:BIOS > Config > Thunderbolt 3 > Security Level = from "User Authority" to "DisplayPort and USB"I switched that setting, and then set my video memory to 512 MB, rebooted and voila! Problem solved. I worked that way for a little while, took it into my office and plugged it back into my Thunderbolt 3 dock and while my video and LAN connections worked...my wireless keyboard (USB dongle), and Jabra 510 did not. Curious. I r... Read more

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RELEVANCY SCORE 90.8

Just got purchased the x1 carbon 5th gen along with the Thunderbolt 3 dock.  However, the dock will not charge the laptop.  Every time I get the error message "The dock is not supplying enough power to your computer.  Please use the ac power adapter that came with the dock".  I am, in fact, using the ac adapter that came with the docking station.  I have updated the bios as well as all of the other recommended updates and still get the same error message.  Does anyone have a solution?

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RELEVANCY SCORE 90.4

Does the Thinkpad P51s support the Thinkpad Thunderbolt 3 Dock? I have the Thinkpad P51s with stock Windows 10 Pro and updated to latest drivers and Windows version and installed the latest Thinkpad Thunderbolt 3 Dock drivers. Attaching the Thunderbolt 3 Dock to the P51s as described in documentation, it charges the notebook, however, noting attached to the dock is recognized. I've tested with attaching USB flash drives, headphones, Ethernet, HDMI, and DP, but nothing is recognized nor are any warnings/errors displayed in Windows. While the Thinkpad Thunderbolt 3 Dock is listed as being compatible with the P51s and T570, the notebook order page does not list the Thunderbolt 3 Dock in any of the accessories lists. Lenovo Sales also confirmed that the Thunderbolt 3 Dock is fully compatible with the P51s.  However, I needed to purchase the Thunderbolt 3 Dock separately from the notebook order. What's going on? Has anybody successfully used the P51s or the T570 with the Thinkpad Thunderbolt 3 Dock? Or is this something I need to wait for full support via a future BIOS/driver update? Or perhaps my Thunderbolt 3 Dock is defective? Thanks,Boris 

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RELEVANCY SCORE 89.6

Hello everybody, We have purchased the X1 Carbon 5th Gen Laptop, which by the way is a great piece of hardware, with Thunderbolt 3 dock.  The problem: the laptop does not recognize the dock. other laptop (identical with the problematic one, works perfectly... Any sugestions?

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RELEVANCY SCORE 89.6

Hello everybody, We have purchased the X1 Carbon 5th Gen Laptop, which by the way is a great piece of hardware, with Thunderbolt 3 dock.  The problem: the laptop does not recognize the dock. other laptop (identical with the problematic one, works perfectly... Any sugestions?













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A:X1 Carbon 5th Generation problem with Thunderbolt 3 dock

There are BIOS settings related to Thunderbolt (in the "Config" menu of BIOS setup), are these settings configured identically on both ThinkPads?  As an experiment, try setting the security level to "No Security" and see if you can get it working that way...
 
Same BIOS version on both ThinkPads?

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RELEVANCY SCORE 88.8

Just setting up my new X1C6 with Win10 and the ThinkPad Thunderbolt 3 dock. Everything seems to be working, but occasionally the fan starts spinning like crazy, and a process named "WMI Provider Host" appears in the Task Manager with >25% CPU usage. After a few minutes the system is back to normal.  After a bit of Googling, I went to Event Viewer -> Applications and ... -> Microsoft -> Windows -> WMI Activity, and I found a series of errors that coincided with the excessive CPU load events. Every error has a reference to a process ID that corresponds to "Thunderbolt.exe". This leads me to think that the problem is related to my docking station. I tried downloading the docking station drivers from https://pcsupport.lenovo.com/en/solutions/acc100356 but it turns out that I have an even newer version installed already (something .12 vs .10) . Yesterday, I heard some loud hissing from the corner of the laptop where the TB3 ports are. It disappeared when I unplugged the dock, and came back after I plugged it in again. After a restart, it went away, and the port as well as the dock seems to be working fine (currently with Ethernet and a VGA monitor). Any ideas what to do here? 

A:X1 Carbon (6th) + Thunderbolt 3 Dock: WMI Provider Host goes crazy

@renetrwrote:Just setting up my new X1C6 with Win10 and the ThinkPad Thunderbolt 3 dock. Everything seems to be working,  [...] Yesterday, I heard some loud hissing from the corner of the laptop where the TB3 ports are. It disappeared when I unplugged the dock, and came back after I plugged it in again. After a restart, it went away, and the port as well as the dock seems to be working fine (currently with Ethernet and a VGA monitor). Any ideas what to do here? There's a separate thread discussing the 'hissing' which appears to be coil whine from the dock in my case. Another person resports more of a clicking sound from near the left of the laptop (near the TB3 port), see here: https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/X1-Carbon-6th-Gen-Coil-Whine-Dock-Issues/td-p...

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RELEVANCY SCORE 88.8

Hello Everyone, I am new here so please go easy on me.I just bought and X1 Carbon 5th Gen laptop c/w Thunderbolt 3.0 docking station.The problem that I have is that the docking station won't recognise any of the external screens that are connected.I am using two Acer screens (one is connected using HDMI port on the dock and the other one uisng Display port).I have tried by connecting just one screen but nothing.I can see that Thunderbolt software is installed and its connected to my laptop.The laptop will charge through the docking station and also the wireless mouse and keyboard will work fine through the dock.Lenovo recommended that i should update my drivers.So I installed Lenovo Companion from Windows store. But it won't update my system. After clicking on System Update, I will get an error message saying "There is a problem in reteriving new updates for your system.Please try again later".Hence I downloaded all the drivers from support website and installed them manually but my docking station is still not working with the external monitors.The monitors works fine when connected directly to the laptop using the HDMI cable. Thanks in advance for your help.

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RELEVANCY SCORE 88

I am considering to add a dock station to my Thinkpad P50.I have seen that Lenovo is starting to sell a new shiny ThinkPad Thunderbolt 3 Dock (40AC0135UK).It doesn't seem to be available in the Uk Lenovo Shop but I have a found a distributor who's selling the product.Is the ThinkPad Thunderbolt 3 Dock compatible with Thinkpad P50 ? Thanks

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RELEVANCY SCORE 87.6

Machine model: 20HRCT01WW At seemingly random intervals the Dock stops working (for USB perphirals) and my wife has to move keyboard/mouse to the machine itself - defeating the purpose of a very expensive dock. Machine is fully up to date the current version of windows and all drivers (including the Thunderbolt dock). I would report this directly to support but Lenovo it won't allow to me register my wife's X1 with my account inspite of the fact that I'm the one who ordered it. Ugh. ThanksMark Levison

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RELEVANCY SCORE 87.6

Received the Thunderbolt 3 dock today, though the display works fine, the dock/laptop won't recognize any external USB devices such as mouse. keyboard, webcam, etc. I tried installing the latest drivers to no avail, from: https://support.lenovo.com/us/en/solutions/acc100356 Anyone else havign this issue?  

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RELEVANCY SCORE 87.6

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 87.6

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 87.6

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 86.8

Hello everyone, I am new to this forum and have a problem regarding setting up 4k displays:Equipment: Thinkpad x1 carbon 2017 (5 gen) with wqhd, thunderbolt 3 dock, 2 4k samsung displayshttps://support.lenovo.com/de/en/solutions/pd029622This is my target setup:1. 4k display at 60 hz connected via dock at dp1 (display port)2. 4k display at 60 hz connected via dock at dp2(ideall: 3. x1 carbon wqhd internal display on) My problem is that the second 4k display (a Samsung TV) did not connect when I connected it via the dock (picture shortly present, then goes away again, when trying again no picture at all). However it works (all 3 displays on) when I connect 2. via the hdmi connector directly at the laptop. Hence: is there any way to get it working like in my target setup? Thank you very much for your suggestions and ideas!Besterev

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RELEVANCY SCORE 84.8

In the last month I purchased a Thinkpad X1 Yoga 2G and the Thuderbolt USB C dock. Since the USB C cable that comes with the dock is too short to allow the dock on the right and laptop on the left (in laptop mode), I put the notebook in tent mode and all works fine---except... Everytime I power up from hibernate it starts beeping about once a second and does not stop. I have to disconnect from the dock, flip it to laptop mode (this is where the beeping stops), return it to tent mode, and then plug the dock back in. It seems that Lenovo, like everybody else, is rushing things to market with plans to fix bugs later (maybe). Any thoughts I how to stop the beeping?  The first time it happened I closed all the apps to reboot and it still was beeping. Thanks.

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RELEVANCY SCORE 84

How to reproduce:1. Remove charger and close the lid.2. Power up.Note: the Windows 10 Fast Startup feature should be disable for reproducing this issue robustly. Issue:1. Windows 10 boots very slow.2. After boot, Windows 10 will detects two ejectable device: Base System Device and USB Root Hub 3.0.3. If reboot, it will freeze at the Lenovo logo. Environment:1. Thinpad X1 Carbon 2017 [20HR000FUS]2. BIOS Version: N1MET31W (1.16)3. Windows 10 Pro 1703 x64 There are several ways to fix it:1. Disable Thunderbolt in [BIOS]-[Security]-[I/O Port Access].2. Hibernate and recover, everything will fine.3. If Windows 10 Fast Startup feature is enabled, manual power off and power up again without closing the lid may fix it. 

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RELEVANCY SCORE 83.6

Hi,I have X1 Carbon 5th Gen. When I connected ThinkPad Thunderbolt 3 Dock to my notebook fingerprint reader stop working. After it i tried to disconnect dock, restart my laptop, fingerprint reader started to work fine. When I connect dock again fingerprint reader stop working.

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RELEVANCY SCORE 83.6

Hi..I ordered a new ThinkPad USB-C Dock. I have a lenovo thinkpad x1 carbon 1st generation and didnt realize that the interface cable between the dock and the laptop is USB-C. Is there a way( converter?) i can use the USB-C dock with my X1 carbon first generation? The X1 carbon has a slimport power adapter where as the cable from the dock to the laptop is USB-C. Appreciate your help. Thanks!  

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RELEVANCY SCORE 83.6

We recently upgraded 5 users from X1C5thgens to 6thgens but the  ThinkPad USB-C Dock Model 40A9 keeps disconnecting the mice and keyboards intermintebtly  and sometimes there is a clicking sound coming from in the docks themselves. The only way to resolve the issue is to power cycle the dock  an the issue goes away until it happens again. I called Lenovo but they dont have any information me so i was wondering if anyone is experiencing these issues with the docks and the 6thgens  Thank you

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RELEVANCY SCORE 83.2

Hello ... I use an Thinkpad Yoga370 together with the Thunderbolt 3 Docking-Station for business. For private use I have an Thinkpad X1 Carbon 4th Generation. Is there any possibility to connect it to the Thunderbolt 3 Docking-Station e.g. by an adapter? So I would like to use the Thunderbolt 3 Docking-Station with connected Screen, Keyboard, Mouse with both Laptops. Thanks for your help and best regards ...

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RELEVANCY SCORE 83.2

Hi, I  got Yoga 920 with Lenovo Thunderbolt 3 Dock that is connected to two 4k Samsung monitors. Just recently when I put Yoga 920 to sleep the monitors will switch off, but in 10-15 sec start looking for a signal.Basicaly screen goes to black (looks like monitor is off) and then in 10 sec it switches on a show blank screen with input name on (DisplayPort) and than it goes off and in 10 sec on with input name ..... this keeps cycling on and off. This is happening on both monitors. It's strange as it used to work fine untill recently (apropox 1 week ago). Im on latest bios with Yoga 920 and latest firmware for Thunderbolt 3 Dock and Lenovo Vantage says my system is up to date. The windows recently updated to Windows 10 (1709), not sure if that is related. Any help how to fix this issue?  

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RELEVANCY SCORE 82.8

Not able to get two monitors (Samsung S27E450) plugged into a ThinkPad Thunderbolt 3 docking unit to work with my X1 Yoga (Gen 2).   Montiors connected to docking via DisplayPort cables.   Windows 10 shows the monitors showing up as "Generic PnP" so something is being recognized.  Tried deleting the device in Device Manager, reboot.  Not finding the drivers on the Samsung site.   Any help appreciated. 

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RELEVANCY SCORE 80.8

Hi, My setup is a Carbon X1 4th gen and a LENOVO ThinkPad OneLink + Dock. I want to buy two monitors to connect to my dock's Display Ports, what is the maximum resolution that I can get out of them? Regards,

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RELEVANCY SCORE 80.8

Hello - I have a X1 Carbon with the ThinkPad USB 3.0 dock.  Everything worked great under Windows 8.1.  I would occassionally have an issue with the dock not coming online after resuming Win 8.1, but it was easy to fix by powering the dock on/off or rebooting. However since upgrading to Win 10, I have a very frustrating audio issue.  Application seem to have trouble picking between the sound device inside the laptop and the dock.  For example, I'll get an incoming call from Skype, and it will start the call on the laptop internal speakers, then say the "Realtek audio device is unavailable".  If I call the person back, it then completes the call and works fine through the dock audio device (which is what it should have done the first time). However the issue isn't only with Skype, it's with all apps.  For example, if I start Pandora in the Chrome browser, it will start playing the audio through the laptop speakers for about 1 second, then stop.  I then have to refresh the web page a few times to get it to start playing out of the dock sound device.  All the while, Windows is configured (and properly reports) the dock sound device as the default (which is what I want). I suspect this is an issue with the drivers for either the dock or the X1 not properly talking to Windows 10, but both are up to date, and either Lenovo or DisplayLink (who makes the dock drivers) have any noted issues with audio-switching. Has anyo... Read more

A:X1 Carbon ThinkPad USB 3.0 dock audio issues

I'm having the same exact issues !Have you find a solution yet ?

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RELEVANCY SCORE 80.4

Hi, Everyone. Got me a nice little x270 to replace my old x201.  Happy enough with the machine, but getting it connected to my accessories (monitor, keyb, mouse, ethernet) is a bit of a chore. This machine appears to have a "proper" dock port on the bottom.  Is there a compatible ultradock available for the model 20HN x270?  By proper - I mean, Not USB.  A nice dock I can simply drop the machine into when I'm at the home office.. Thanks!

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RELEVANCY SCORE 80.4

I have read a lot and tried updating the firmware - nothing works.When I put the laptop in the docking station - it does not recognize the monitar and also says AC power is not connected when it is. Help appreciated!

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RELEVANCY SCORE 80

One of my clients is having an issue with his X1 Carbon and OneLink+ dock. After installing the latest Bios, we noticed that the laptop will hang at the starting windows screen (windows 7) when rebooting while connected to the dock. This does not happen if not on the dock. I have updated the dock drivers, graphic drivers, dock firmware, power management drivers, ethernet drivers, usb drivers, even got a replacement dock from Lenovo with the same result. I tried reverting to the old bios but that did not help. Im not sure what else to try. 

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RELEVANCY SCORE 79.2

Have have about six instances now all are X1 Carbon 5th Gen using Thinkpad TBT 3 Dock. Laptops are not on recall list. In every instance when trying to connect to shares on these laptops get the following error from diagnostics. "The device or resource (computer name) is not set up to accept connections on port "The File and printer sharing (SMB)".  Contact your network administrator." All comptuer are Windows 10 Pro 64bit. All have the latest TBT 3 dock drivers from website. All aspects of SMB 1.0/CIFS File Sharing Support are installed. I have tried uninstalling and reinstalling the SMB 1.0/CIFS File Sharing Support. All other comptuers in the environment are not having this issue. I believe there is some issue with the Thinkpad TBT 3 Dock Ethernet. Anyone ran into this? If so did you find a fix?

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RELEVANCY SCORE 74.4

I have 20A7, since I received it a couple of months ago, it  had this problem. If I use sleep mode it never wakes up. Unless I disable usb3.0 mode in BIOS setup. In this case it goes to sleep and wakes up, but after waking it up the adaptive keys are gone and not functioning. It's speakers also doesn't work (mute) until the next reboot.

A:Thinkpad X1 Carbon sleep problem

Also have a 20A7 and the same thing occurring, the adaptaive keyboard bar is frozen and the laptop will not wake from suspend.  I have updated all drivers using the Lenovo Update utility so the laptop should be current.  Any update or resolution on this issue?

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RELEVANCY SCORE 73.6

It seems like my new X1 has an issue with sleep mode. The red light is blinkng (as it should), but the fan keeps running. Does not matter whether AC adapter is connected or not. Is it normal? If not, how do I fix it? All updates (Windows and Lenovo) are installed

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RELEVANCY SCORE 72

Hi All. I have a Thinkpad X1 Carbon 2nd Gen 2014 (20A7/20A8),  Win10 64bit, all drivers updated. The problem is that the Adaptive Keyboard always went off automately everytime I resume the ThinkPad from sleep.And it remains off (black) until I reboot the ThinkPad. Or turn off and on the ThinkPad. I have tried to replace my Adaptive Keyboard with another new spare part. But this problem remain unresolved.Could anyone give me some advice? Thanks a lot.













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A:Thinkpad X1 Carbon 2nd Gen - Adaptive Keyboard went off everytime resuming from sleep

This problem has been resolved by installing the latest driver:  Hotkey Features Integrationhttp://support.lenovo.com/gb/en/downloads/ds031814 suggested by:https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/2014-X1-Carbon-Adaptive-Keyboard-sometimes-no...  

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RELEVANCY SCORE 72

Thinkpad P51 with dual (DVI and HDMI) monitors connected to Dock.  P51 wakes fine and one monitor (DVI) sees signal (awakes from sleep mode), the other sees no signal.  Regardless no video information is sent to either monitor - the DVI monitor is awake but black screen - the HDMI remains asleep. Removing and reinserting connectors has no impact. Cycling P51 into and out of sleep mode makes no difference. Removing P51 from dock and all functions correctly. USB (dongle) mouse and keyboard functions also loses functionality when P51 is docked.  They awaken the P51 but do not function correctly. removal of Laptop from dock and they function fine along with local monitor.  Re-install into dock and mouse/keyboard are inoperable. Only a hard shutdown and reboot via the dock switch (laptop remaining docked) returns the system to correct function.  All is normal and functioning.  Both monitors are immediately recognized, USB mouse & keyboard fully functional. When plugged in: Monitors set to sleep in 10 and PC in 30mins.  Short sleep (50-90mins) and system awakens correctly - overnight sleep (8-10hrs) and this happens every time.   Latest Dock FW/drivers is installed.   System and dock brand new - just arrived last week.

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RELEVANCY SCORE 71.2

In installed Ubuntu 18.04 and when I put the computer to sleep by closing the lid or suspend button, the touchpad is eratic and the keyboard LEDs flicker.  Any suggestions?  I've updated to the latest kernel 4.16.10 and no difference.

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RELEVANCY SCORE 71.2

Been going back and forth and can't seem to find a screen that can replace my Thinkpad x1 carbon 3460 1f4 screen. Have found one for the 3448. Don't know if they use the same screen and pins?  See photo for description of the replacement screen I'm looking at.  













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A:Can the Thinkpad x1 carbon 3448 laptop screen replace a Thinkpad x1 carbon 3460 1f4

The 3448 and 3460 machines use the same panels, hinges, lid, cables, etc.

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RELEVANCY SCORE 70.8

Over the past several years there are many posts of users experiencing variations on this problem with X1 Carbon and X1 Yoga of various generations, including the latest ones (I provide a list below). That is, the systems often cannot come out of sleep mode in some way, shape, or form. I had this problem on my own brand-new X1 Carbon 5th Generation, right out of the box. In my instance, I noticed this issue in the following two scenarios: -After having gone in to sleep mode, once I opened the lid, or press power button once:power light goes from blinking to solid onscreen stays blank/blackseems that if the machine is going to be in the frozen state, keyboard presses do not "unsleep" it (which they normally would). Closing the lid causes the power light to go to solid on, but then opening it again does nothing.in a couple of rarer instances, the machine actually did come out of sleep but then instantly the screen froze (but this was quite uncommon, mostly it just wouldn't come out of sleep at all)-After passing the initial boot screen of Lenovo, the next part shows the Lenovo logo but without the swirling dots and is frozen (the power light would show on)Under both conditions: The power light is solid onThe keyboard lights functionality works: backlighting, FnLock light, mute lightSometimes you can hear the fan workingPlugging in to external display does not display anything on itThe only way to rectify is to do a hard shutdown by holding the power key With... Read more

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RELEVANCY SCORE 66

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 65.2

Hi Issue: Thinkpad X1 Carbon 5th Gen black screen / 'screen off' on resume from sleep I know this issue has been posted about several times regarding the X1 series but .... none of those threads seem to have any kind of answer to this problem. This seems like quite a horrendous issue for a +1500 to have !! Constantly 'hard rebooting' and losing all my open work is seriously seriously annoying. Please note: My drivers are 100% up to date based on Lenovo's own update software. I have all official Windows 10 updates issued to date (21 aug 17). These are the patterns I've noticed: - It doesn't always replicate the same behaviour: after resume from sleep sometimes it's 'black' and other times it's fine. I'd say 66% of the 'lid openings' it's OK but 33% of cases it's not.- I've found that if I shut the lid again and reopen (often 3 or more times and waiting 30+ seconds on each open then 30+ seconds on each close) then I can eventually 'force' it to turn the screen on.- If I 'manually' set the unit to sleep from the start menu rather than just closing the lid, I'm pretty certain that it *does not* exhibit this problem. I'll be 100% certain once I've tried this a few more times.-  I've removed all USB devices from the laptop one-by-one and waited for the problem to reoccur thus ruling out any single or combination of USB devices.- I have the 'lock screen' shown when it does successfully resume from sleep. - The screen 'blackness' looks t... Read more

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RELEVANCY SCORE 64.8

Hi, I'm using a Thinkpad Pro dock with an L470 on Windows 10(both brand new). I have a VGA monitor and a DVI monitor connected, and I can output to both screens as well as the laptop display just fine, however as soon as I undock, or switch off the laptop, when I come to use it again, neither of the screens are showing as connected. I have to unplug them from the dock and plug them back in again, at which point they are recognised and work fine... until next time I have to undock/switch off. I have tried this with a different laptop (also L470, but running windows 8.1) with even worse results. On 8.1 the screen will repeatedly flicker for about 10 seconds, and any combination of the screens will work (sometimes just the laptop screen, sometimes just 1 monitor, sometimes all 3). Even when all 3 work, it rarely has the correct resolution, and takes several attempts to get it working properly. The whole point of having a dock is that there is no need to keep plugging things in every time you sit down, if I have to re-plug the monitors every time it is pretty pointless having a dock in the first place. I have updated the BIOS on the laptop, updated every driver, updated the firmware for the dock and Windows 10 is bang up to date. I'm about out of ideas now and was wondering if anyone had any ideas on a fix for this? I see web searches that this is quite a common issue, but most of the "fixes" are what I have already done, or are specific to Windows 7 or 8... Read more

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RELEVANCY SCORE 64.4

I contacted Lenovol support and they send me a replacement unit. The the replacement unit has the same problem. Thinkpad Thunderbolt 3 docking station does not charge Thinkpad P51 battery.  I need to plug in the power adapter for both docking station and notebook.  Does anybody have similiar problem? 

A:Thinkpad Thunderbolt 3 docking station does not charge Thinkpad P51 battery.

Everbody's p51 would be the same.  The thunderbolt port won't work as a charging port.  The thunderbolt specs specify 100w max.  That's not enough.  Your thunderbolt port is not for charging.  To charge via the dock, you need a workstation dock, not a thunderbolt dock.  A thinderbolt dock can charge things like an x1 carbon (5th gen) or x1 yoga (2nd gen)

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RELEVANCY SCORE 64

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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