Support two monitors with laptop lead closed

I have connected Lenovo 900 yoga laptop to two external monitors using UD-3900. The set up works fine but now I have three monitors; 1) Lenovo Laptop 2) Monitor 1 and 3) Monitor 3. How do I close laptop lead and just use two external monitors? On the laptop, I changed power setting so, with lead close, it does nothing. Any suggestions?

Hi Dilip,

Thank you so much for reaching out to us, I would be happy to answer you questions!

Just so that I am understanding your question correctly, you are able to utilize the external two displays that you have connected to the docking station, but when you close the lid, you are not able to access any icons or applications?

When you connect the two external displays, head to the Display Settings menu, select one of the external monitors (usually indicated by a specific number, if you do not know which display is which, click the “Identify” button and it will show a number on each screen, showing you how windows identifies it) then, set one of the external displays as the “Primary Monitor” this will then allow you to open and use applications and icons on the external monitors, while the laptop lid is closed.

I hope this information helps, let me know if I have misunderstood your question, I want to make sure I am able to answer it correctly!

Thank you so much for your patience,
Product Owner & Technical Support

Hi Everyone,

We attempted to contact Dilip, but have not received any response back. We would be happy to continue to troubleshoot, and address any individual issues in the future if Dilip would like to contact us directly at

If anyone has any similar issues and requires assistance, the same email address ( can be utilized for new ticket creation, and we would be happy to help.

Thank you for your time,
Product Owner & Technical Support