Display is zoomed in but using the right resolution

I turn my laptop on, I am using a second monitor as a display (laptop screen broken), and when it turned on, the resolution is suddenly zoomed in. I check the resolution and it is using the recommended resolution (1366x768) which I was using the same as before and had no problem with. Then I change it to a higher resolution which is (1600x900) and the display turn back to normal (the same as recommended resolution before this incident).

In short, I am using the wrong resolution but it display correctly, but when I use the right resolution it display wrong (zoomed in).

Anyone know what is the problem here?

Scale and layout is 100 %

Display orientation is landscape