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2 Posts

06-20-2018

Sweden

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  • Message 1 of 13

Hybrid USB-C with USB-A Dock: USB ports not working

2018-06-20, 10:22 AM

Hi!

I have a Thinkpad T480s for corporate use and together with it, we got a ThinkPad Hybrid USB-C with USB-A Dock. The computer is fully updated, drivers (including the April update for the dock station), bios, windows, all fine.

The dock is connected to the laptop via usb-c TO usb-c port, but it seems to have some problems.

 

The laptop receives energy and both screens connected to it and the ethernet connection work fine. However, the usb ports do not work, or work with interruptions.

I tried to connect a mouse, a rollermouse, a keyboard and a usb stick with no success. I noticed that the icon of "safely remove hardware and eject media" comes and disappears all the time.

What I tried so far:

- uninstall / reinstall the device drivers

- restart multiple times laptop and dock (I did not see any difference here)

- bios update

- change the settings so that Windows does not turn off any device to save energy

Lenovo asks to try the dock with other computers, but we do not have many and it seemed to work on a X1 Carbon (even if the test was just a few hours), but sometimes it does work too on my laptop.

 

 

Any feedback/idea? Anyone that had the same problem?

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41 Posts

06-12-2016

China

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  • Message 2 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-07-10, 0:54 AM

Can you share your system's BIOS and EC version? Thanks.

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42 Posts

06-13-2018

China

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  • Message 3 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-07-10, 2:32 AM

Can you see this issue now? If it is still happen,Can you try upgrading BIOS?

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3 Posts

11-07-2018

United States of America

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  • Message 4 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-11-07, 22:49 PM

Same issue

T480

Over USB C the USB ports on the dock do not work

Over USB A they work fine

I checked the Thunderbolt settings > not an "approval" issue like a true USB C Dock

 

BIOS is fully up to date

PN: 20L5000XUS

BIOS: N24ET37W 1.12

Running latest Lenovo drivers: https://download.lenovo.com/consumer/options/thinkpad_hybrid_usb-c_with_usb-a_dock_driver_v10013.exe

 

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42 Posts

06-13-2018

China

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  • Message 5 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-11-08, 0:26 AM

Could you please share your reproduce step for this issue with us? Thanks.

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3 Posts

11-07-2018

United States of America

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  • Message 6 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-11-08, 1:37 AM

I don't understand the question?

Do you mean:

1. Plug the device into the dock with the USB C cable

2. The dock connects, but the USB ports in the dock do not work (everything else, ie Displays/Ethernet do work)

This was described above by the original poster

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42 Posts

06-13-2018

China

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  • Message 7 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-11-08, 2:48 AM

Thanks for your feedback.

Kindly help provide more information to help us repro  this issue.

When did the dock usb-c port can't work?

Does it appear when attach to system? 

 

 

 

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3 Posts

11-07-2018

United States of America

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  • Message 8 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2018-11-08, 4:09 AM

Dock is brand new and worked this way out of the box

To reproduce, you would

1. plug the dock into the USB C port

2. see that NO additional usb devices appear in device manager

3. no exclamation points appear in device manager

4. all other devices DO appear (display adapter/ethernet/sound)

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45 Posts

12-19-2013

Slovakia

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  • Message 9 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2019-01-29, 11:43 AM

Hello,

I've got brand new T480 with ThinkPad Hybrid USB-C with USB-A Dock and I'm experiencing USB issues when docked.

I have read related topics and they seems to be dead without any working solution.

 

Description of problem:

When I docked my T480 for the first time, all USBs (only mouse and keyboard) were working. I had left office for night and when I have returned and docked my laptop again, USBs seems to stop working. I’ve tried to reconnecting dock, powering dock off and unplugging devices or changing USB slots without any success.
Only restart of computer seemed to get USBs working back again. BUT, there have been about 5 minute period when USB devices were randomly connecting and disconnecting without any warning.
Problem appeared again when I left my desk for 30 minutes without turning off or putting laptop into sleep. USBs were dead again. Only restart helped and it was followed with 5 minute period of randomly disconnecting USB devices again.
All other connected devices – 1x FHD monitor via DP, 1x FHD monitor via HDMI and headphones via front 3.5mm jack are working without any problems and laptop is charging properly as well.

 

My laptop is fully updated via Lenovo Vantage and dock in currently at only available FW.

 

Is there any solution to this? It gets pretty annoying for laptop that is meant to be docked!

And it seems that problem occurs accros multiple ThinkPad Thunderbolt docks..

 

Thank you

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1 Posts

02-26-2019

France

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  • Message 10 of 13

Re: Hybrid USB-C with USB-A Dock: USB ports not working

2019-02-26, 9:22 AM

Hello,

 

I have exactly the same problem with a thinkpad P1 and a thunderbolt 3 dock.

 

Someone have a solution ?

 

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