Hi,
Things to try:
Perform a complete [https://www.memtest86.com/download.htm|memory check] to make sure that all the memory is OK.
Check in Event Viewer (If Win 10 OS, right click on Windows Start button on the left side of the Taskbar and select Event viewer) for any Critical, Error or Warning events that standout which may give an indication of what is happening.
How do you get the display to restore, do you have to exit the game or what?
Do you have the [https://www.asus.com/Laptops/ASUS-VivoBook-15-X510UR/HelpDesk_Download/|latest video drivers] installed for both GPUs?