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john55788
What's DOS?
Posts: 1
Registered: ‎04-24-2017
Location: US
Views: 998
Message 1 of 3

Problems outputting to two monitors (P50 + Thinkpad Pro Dock)

Hello,

 

I have a P50 that I am trying to output to two displays. I have a Pro dock that I realize can only drive 1 digital signal with so I am using the DVI port to display to 1 external monitor and the LCD itself.

 

I am trying to connect a second monitor using the mini DisplayPort  on the right side of the laptop, but Windows 10 does not detect this monitor to be available. If I disconnect the DVI cable on the back of the dock, I get output on the mini DisplayPort. Is this just a limitation of the laptop or do I have something configured incorrectly?

 

I am able to achieve the desired functionality (DVI monitor from dock + mini DP monitor from laptop + LCD) on an X240 ThinkPad, but the setup does not work with a P50.

 

Any help would be appreciated.

Lenovo Staff
Lenovo Staff
Posts: 434
Registered: ‎01-14-2014
Location: US
Views: 929
Message 2 of 3

Re: Problems outputting to two monitors (P50 + Thinkpad Pro Dock)

Go into BIOS F1 setup -> tab over to the 'Config' menu -> scroll down to the 'Display' menu -> Set graphics device to "Discrete graphics" -> Press F10 to Save and Exit the BIOS. 

 

Let us know if this helps. Smiley Happy 

skyriser
What's DOS?
Posts: 1
Registered: ‎07-13-2018
Location: US
Views: 483
Message 3 of 3

Re: Problems outputting to two monitors (P50 + Thinkpad Pro Dock)

 On the software side in, right click on your Windows 7 desktop and select screen resolution and ensure your displays are set to extend. This happened to me where some how it switched itself to disconnect and monitor 3 still worked as expected.help.PNG

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