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atlbt
Not applicable
Posts: 5
Registered: ‎12-28-2018
Location: US
Views: 657
Message 1 of 2

A485 and Thinkpad Ultra Docking station USB issue

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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atlbt
Not applicable
Posts: 5
Registered: ‎12-28-2018
Location: US
Views: 523
Message 2 of 2

Re: A485 and Thinkpad Ultra Docking station USB issue

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.

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