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sonoerin
Paper Tape
Posts: 1
Registered: ‎06-25-2018
Location: US
Views: 1,984
Message 1 of 2

ThinkPad P52s / Ultra Docking / Ubuntu not detecting external monitors

I recently purchased the P52s and the Ultra Docking station.  I am dual booting Windows 10 Pro and Ubuntu 18.04.  I have dual 27" monitors connected to my Ultra docking station, as well as ethernet and power.  The Ultra connects to my P52s via USB-B Type -> USB.  Inititally all was well, but after a week or so,  my Ubuntu stopped seeing the dual monitors, even though the ethernet from Ultra continues to be picked up.   In Ubuntu the "display" only shows the built in laptop display and I cannot force it to detect external monitors.

 

I have updated all the Lenovo drivers via the Windows updaters.  Previous threads seemed focused on other Lenovo products and didn't help me here.

 

 

jemartin
What's DOS?
Posts: 1
Registered: ‎11-22-2018
Location: US
Views: 770
Message 2 of 2

Re: ThinkPad P52s / Ultra Docking / Ubuntu not detecting external monitors

I'm having the same issue except on a USB C dock. Any workarounds or should I be returning my dock?

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