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bluebeat888
Serial Port
Posts: 22
Registered: ‎01-27-2018
Location: US
Views: 595
Message 1 of 3

Thinkpad X1 Extreme Thunderbolt 3 single "secondary" display / USB / UCSI controller issues?

Got a sealed refurb from Lenovo, Thinkpad X1 Extreme 20MF000DUS.

Updated everything from Lenovo + Windows (including BIOS to 1.18 )

I have an external USB-C gen2 monitor (single cable for Video+power) Works absolutely great on older Yoga...

 

On this X1 Extreme machine it would sometimes work, but 80% of the time would not. Monitor gets power, but no signal.

It would also spit out error of USB device not recognized and this in device manager:

Windows has stopped this device because it has reported problems. (Code 43)

A USB port reset request failed.

 

Also, sometimes it would show this in device manager under UCSI USB controller when monitor is plugged: Windows has stopped this device because it had reported problems (code 43)

 

External USB-C hard drive works... on Thunderbolt.

 

The long list of things I have tried to make monitor work:

Uninstalling usb drivers / rebooting machine.

Trying both Thunderbolt ports

Trying a different cable

Running Vantage diagnostic

Manually installing latest chipset driver

Disabling security for Thunderbolt in BIOS

Setting a power plan for maximum performance

Disabling power savings in USB ports

Talking to absolutely ridiculous Thinkpad for nearly 2 hours without even trying to troubleshoot my problem.

 

 

What I found a bit strange:

There are no dedicated (separate) USB drivers on Lenovo support page for my laptop. The USB driver dates are 2006 in device manager... I do not believe there were any USB-C laptops 12 years ago...

 

Can anybody suggest something useful to try before this machine gets shipped to mothership?

 

Thank you.

 

bluebeat888
Serial Port
Posts: 22
Registered: ‎01-27-2018
Location: US
Views: 556
Message 2 of 3

Re: Thinkpad X1 Extreme Thunderbolt 3 single "secondary" display / USB / UCSI controller i

anyone?

 

ruixunbao
Fanfold Paper
Posts: 4
Registered: ‎02-21-2019
Location: CN
Views: 485
Message 3 of 3

Re: Thinkpad X1 Extreme Thunderbolt 3 single "secondary" display / USB / UCSI controller i

I have an AUSU MB16AC portable monitor. When I connect it to the thunderbolt of my X1E, I can find two external monitors in my system device manager. One is connect through the Display Port to GTX1050Ti and the other is connnect through USB DisplayLink port and named MB16AC. MB16AC supports both the USB displaylink function and the DisplayPort function. So does the thunderbolt port. I think that's why I can find two external monitors in my system devices manager.
If your monitor only supports USB displaylink function, you should download the USB displaylink drivers which you can find in https://www.displaylink.com/downloads/windows. You may also find the official drivers for your monitor in the manufacture's website. Windows 10 sometimes can also download the drivers from Interenet automatically when your system upgrade task runs.

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