Invalid Joyeuse Redmi Note 9 Pro, screen resolution too small

[toutkeus]

Hello, I installed HMNote9ProEU_V12.0.1.0.RJZMIXM Rom. No problem so far, only that the screen resolution is smaller, as you can see, it's missing some space at the top and the bottom.
Did I missed something ?
Thanks for the help !

 

[Igor Eisberg]

Nothing to do with our ROM. I don't see the problem, screenshots don't compensate for margins set for the device's display. Contact Xiaomi if you have any questions...

 

[toutkeus]

Thanks for your answer.
Maybe there's something I don't understand. My phone's resolution should be 2400x1080.
But in dev options, it shows 1080x2168. That difference between 2168 and 2400 is why I have those thin black spaces at the top and the bottom of my screen.

Before I put the rom, the screen was full