What should I do if win7 cannot detect the second monitor? What should I do if win7 cannot detect the second monitor?

In order to improve efficiency, many consumers connect an external monitor when using their computers. However, some win7 users find that their computers cannot detect the second monitor. What should they do? Open the control panel, go to the device manager, and then check whether there is a second monitor in the monitor extension. If not, there is a connection problem or a hardware problem. Just check them one by one. .

What to do if win7 cannot detect the second monitor

1. After the monitor is connected, open the "Operation Panel" and select "Hardware and Sound"

2. After entering the page, click "Device Manager" in "Machine Equipment Copier".

3. In the "Device Manager" interface, you can check whether there is a second monitor connected through "Monitor". If not, it means that this It is also a hardware configuration problem or connection problem of the monitor, which requires us to investigate.

#4. Return to the desktop, right-click the mouse and select "Resolution".

5. After entering the page, please click "Advanced Settings" at the bottom right.

6. In the "Advanced Settings" interface, we click the "Monitor" option above. After clicking, select the monitor suitable for your monitor in the list below. Refresh rate, then click "Apply" to take effect.

7. After the previous process is completed, press WIN P on the computer to select the "Copy" option or the "Extend" option, and then you can Inspection or indication of two monitors.

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