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What's DOS?
Posts: 1
Registered: ‎01-10-2019
Location: NL
Views: 380
Message 1 of 2

Thunderbolt 3 Dock Issues with Monitors

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.)


2019-01-11 09_04_21-Window.png


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 Info


<image removed>



Lenovo Thinkpad Thunderbold 3 Dock

Model 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?


Moderator note: image containing serial number removed to prevent abuse.  Please repost with S/N obscured, or provide the non-S/N information as text.

Lenovo Employee Sunnyyi
Lenovo Employee
Posts: 60
Registered: ‎08-14-2018
Location: CN
Views: 282
Message 2 of 2

Re: Thunderbolt 3 Dock Issues with Monitors

Dear Customer,

We didn't see such issue before. Will double confirm again.


Meanwhile, Have you tried your Thunderbolt Dock on another P52 systems ?

From your description, it seems there's some problem with your system Thunderbolt function. 

Please try to reset your system to try again.


Sincerely yours.

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