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CT_LOH
Paper Tape
Posts: 2
Registered: ‎01-08-2019
Location: MY
Views: 586
Message 1 of 5

P51 on ThinkPad 90W Ultra Dock not detecting monitor

Hi, 

 

I'm using a Lenovo P51 with M2200 graphic card and have a docking station 40A2. I wish to connect the two monitors to my docking station, one is VGA cable and another one is HDMI. When I dock my P51 to the docking station, the monitors could not be detected. I tried to configured my bios setting to discrete graphic setting but nothing changed. Try to put shared on dock display also but nothing works. 

 

When I connected one of the monitor HDMI cable to the laptop directly without going through the docking station, it works perfectly but I could not connect the VGA cable monitor to the laptop without a converter and it defeat the purpose of having a docking station. 

 

Anyone encounter this problem and has a solution for this problem? 

lolo77
Paper Tape
Posts: 6
Registered: ‎09-12-2018
Location: ES
Views: 300
Message 2 of 5

Re: P51 on ThinkPad 90W Ultra Dock not detecting monitor

Same problem. Waiting for service..
Social Support Agent
Social Support Agent
Posts: 1,190
Registered: ‎08-02-2018
Location: US
Views: 285
Message 3 of 5

Re: P51 on ThinkPad 90W Ultra Dock not detecting monitor

Hi there! The P51 is not listed as a compatible device to the ThinkPad 90W Ultra Dock. You can check it here: https://www.lenovo.com/us/en/accessories-and-monitors/docking/mechanical-docks/ThinkPad-Ultra-Dock-9....



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CT_LOH
Paper Tape
Posts: 2
Registered: ‎01-08-2019
Location: MY
Views: 270
Message 4 of 5

Re: P51 on ThinkPad 90W Ultra Dock not detecting monitor

Hi there, 

 

Just to update so that other people could benefits from the same problem. I've fixed the problem by sending the laptop back to lenovo service center. They identify that it is motherboard defect and change the whole motherboard for me. After swapping out with a new mother board, problem fixed and now i have 2 monitors connected without a problem. 

 

Hope this could help. 

lolo77
Paper Tape
Posts: 6
Registered: ‎09-12-2018
Location: ES
Views: 259
Message 5 of 5

Re: P51 on ThinkPad 90W Ultra Dock not detecting monitor

I've the 230W version of the Docking Station (40A50230EU). I'am very annoyed.. It has been working for a year without problems..

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