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4 Posts

01-20-2017

United States of America

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T490 USB - C Port and dock display issue

2021-04-13, 17:54 PM

I have a question, 

 

 

Is there a limitation with the usb c ports in the t490?

 

I'm using a lenovo usb dock gen 2 (https://support.lenovo.com/us/en/solutions/acc500106-thinkpad-usb-c-dock-gen-2-overview-and-service-parts) connected to the usb c port #2

 

Whenever I reboot the laptop while connected to the first mentioned dock the screen resolution changes in all the monitors. Here is a picture of the port I'm using. 

 

lenovo t490 ports

 

 

 

FYI. I already sent this laptop to lenovo 3 times , and they gotta be stupid or something because the problem is easy to validate and verify. I would think it's the mainboard or the port doesn't support it, but they keep wiping the machine over and over saying it's not a problem.

 

 

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3591 Posts

08-02-2018

United States of America

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Re:T490 USB - C Port and dock display issue

2021-04-13, 19:34 PM

Hello gacpac!


Greetings


Based on the smartfind, the T490 is compatible with the docking station and you can refer to this link: https://accessorysmartfind.lenovo.com/#/search?categoryL1Name=Docking&categoryL2Names&keyword=&pageIndex=1&pageSize=40&query=&subSeriesList=22TP2TT4900&systemId=22TP2TT4900

 

Can you try installing the driver and first then the firmware of the Thunderbolt here: https://support.lenovo.com/us/en/solutions/ht508988

 

I would also suggest installing the BIOS update manually here: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t490-type-20n2-20n3/downloads/driver-list/component?name=BIOS%2FUEFI

 

Let us know how it goes.

 

 

 

Jwes_Lenovo



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4 Posts

01-20-2017

United States of America

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Re:T490 USB - C Port and dock display issue

2021-04-16, 3:16 AM

I did all that. Also RMA the laptop 3 times now. 

 

Also! from the usb C port #1 everything works perfect!

 

the usb c port #2 is the one not working as it should. 

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3591 Posts

08-02-2018

United States of America

785 Signins

18582 Page Views

  • Posts: 3591
  • Registered: ‎08-02-2018
  • Location: United States of America
  • Views: 18582
  • Message 4 of 5

Re:T490 USB - C Port and dock display issue

2021-04-16, 11:28 AM

The issue seems to be hardware already since the other port works fine. I would suggest contacting support about it for further assistance or you can bring it to any of our authorized repair centers in your area.

 

You can find it here: https://pcsupport.lenovo.com/us/en/partnerlocator

 

 

 

Jwes_Lenovo



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4 Posts

01-20-2017

United States of America

13 Signins

77 Page Views

  • Posts: 4
  • Registered: ‎01-20-2017
  • Location: United States of America
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  • Message 5 of 5

Re:T490 USB - C Port and dock display issue

2021-04-16, 12:01 PM

Yup

 

Same thing I thought. Lenovo must be stupid or something. RMA computer 3 times and all the times they keep wiping it.

 

 

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