By Ellie / Last Updated September 14, 2021

RDP multiple monitors not working problem

“Does the number of locally connected monitors affect the number of monitors connected via RDP? I have 3 monitors connected locally, but only one can work properly over RDP. Both are Windows 10 systems. How can I solve this Remote Desktop multiple monitors not working on Windows 10 problem?”

Many users have encountered the same problem when using RDP to control another PC remotely. But why does it occur and how should it be solved? In the next part, we’ll show you the causes of RDP multiple monitors not working problem and two solutions to effectively solve it.

Computer

Why is RDP multiple monitors not working?

There are many reasons why multiple monitors of RDP do not work, mainly including hardware, system version, and software.

  • Hardware causes, including display failures, computer host failures, etc., are generally rare.
  • Software reasons, this is the main cause of the problem, but we can solve it through the RDP-related settings.
  • System version reasons are generally rare but still, need attention. Because some Windows systems do not support remote control of multi-screen displays, we need to check whether the local computer and the remote computer comply with the corresponding Windows version.

Note: Server users don’t need to worry, because the RDP of Windows Server 2012, Windows Server 2016, and Windows Server 2019 all support multiple monitors.

Individual users need to notice the Windows version of the host computer. Currently, Windows 7 Professional Edition does not support multiple monitors, while Windows 7 Enterprise Edition and Ultimate Edition support; Windows 8.1 does not support multiple monitors, while Windows 8.1 Professional Edition and Enterprise Edition support; Windows 10 Home Edition does not support multiple monitors, while Windows 10 Professional Edition and Enterprise Edition support.

3 solutions to solve Remote Desktop monitors not working

Below I provide you with two solutions, you can choose according to your own situation.

Solution 1. Configure RDP properly

Whether RDP is configured properly will directly affect the user experience. For users who are facing Remote Desktop multiple monitors not working problem, the first thing to do is to configure RDP properly to ensure that the problem doesn’t lie in RDP itself.

Set up the host computer

Step 1. Press Windows key + R to invoke the Run dialog box. Then type in “sysdm.cpl” and hit OK to open System Properties.

Run Command Sysdm.cpl

Step 2. On the Remote tab, tick Allow Remote Assistance connections to this computer under Remote Assistance and then tick Allow remote connections to this computer under Remote Desktop.

Allow Remote Connection

Set up the client computer

Step 1. Search for Remote Desktop Connection in the Search box. And then open it.

Remote Desktop Connection

Step 2. Click Show Options first, then click Display. Under Display configuration, tick Use all my monitors for the remote session.

Use All Monitors for the Remote Session

Step 3. Back to the General tab, then enter the IP Address and User name of the host computer to achieve remote control. If you don’t know the IP Address of the host computer, keep reading.

General Tab

How to query IP address and user name?

Step 1. Press Windows key + R to invoke the Run dialog box. Type in “cmd” and press OK. Then type “ipconfig” and press Enter. Now you can see a group of IP addresses, of which the IPv4 address is the one you need.

Find the Computer Name in the Console

Step 2. Then type “query user” to see the username.

Find the Username in the Control Panel

Although this method does not require additional software installation, the operation steps are not very user-friendly. Besides, RDP is greatly affected by the speed of the local Internet connection. When the connection speed is slow, it may cause serious delays and cannot be well adapted to remote desktop control of multiple monitors.

Note: If you want to use your home computer to remotely connect to your work computer, this means the two computers are not on the same network. Then you need to contact the company’s IT staff to configure the network equipment, and then use port forwarding (Remote Desktop defaults to port 3389). The connection of the personal computer needs to be forwarded to the designated port before it can be used normally.

Solution 2. Use the command line

Press Windows key + R to invoke the Run dialog box. Then type in “mstsc /multimon” and hit OK to open the Remote Desktop Connection interface. Then refer to the previous method and switch to the Display tab for corresponding settings.

Set up Remote Desktop Using the Command Line

After this, if you want to check the connection of multiple monitors, you can press Windows key + R to invoke the Run dialog box. Then type in “mstsc /l” and hit OK to see the list of all the monitors on the current computer.

List All Displays

Solution 3. Use RDP files

Step 1. On the General tab, click Save As under Connection settings.

Save as RDP File

Step 2. Enter the File name you want.

Remote Desktop Files

Step 3. Find the saved RDP file, right-click it and then choose Open with Notepad. Enter “use Multimon:i:1” and save it. In this way, you can directly enable multiple monitors.

Remote Desktop Connection Notepad

Conclusion

How to solve the RDP multiple monitors not working problem? After making sure that the two computers are connected successfully, you can choose to set it directly in Remote Desktop Connection, use Command Line or use RDP file. Either method can effectively solve the problem.