how make double displayer work in core Graphics

[vilnius94]

here are my device info
Board：

• CPU: Intel Core i-9400
• GPU: UHD Graphics 630
• Motherboard: B356M-kylin

there has only DVI and HDMI in board.
Now i has make the one of them in work,but can not work in same time.
How can I make it work?

 

[Feartech]

here are my device info
Board：B356M-kylin

As per rules, please update your hardware profile to allow others to help you easier

https://www.tonymacx86.com/account/account-details

 

[gatorback]

Have you tried connecting two monitors at the same time? One to DVI the other to HDMI? Does each port test successfully? Please to update your original post with answer to these questions so others can help you