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12-28-2018

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A485 and Thinkpad Ultra Docking station USB issue

2018-12-28, 18:34 PM

I have an A485 with the ultra docking station using ubuntu 18.04 and 18.10.

 

Whenever I undock the laptop, the USB ports stop working completely.

 

Docking or undocking does not help afterwords. Removing the USB and reattaching does not work. Adding a USB after the undock does not work. It's like the USB ports don't even exist.

 

The only thing that makes the USB ports work again is restarting.

 

I have upgraded the dock firmware, BIOS firmware and upgraded the kernel to the latest version to no avail.

 

Anyone have this issue or know of any fix? Thanks!

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Re: A485 and Thinkpad Ultra Docking station USB issue

2018-12-28, 19:04 PM


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8 Posts

12-28-2018

US

6 Signins

79 Page Views

  • Posts: 8
  • Registered: ‎12-28-2018
  • Location: US
  • Views: 79
  • Message 3 of 3

Re: A485 and Thinkpad Ultra Docking station USB issue

2019-01-04, 15:13 PM

Just in case anyone has this issue, I was able to fix it by changing the USB XHCI Speed Select from GEN2 to GEN1 in the BIOS.

0 person found this solution to be helpful.

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