Just an update for some people.
Thanks to SAMI :
"7680/1440 = 5.333333333333333
Go to:
https://www.h-schmidt.net/FloatConverter/IEEE754.htmlPaste "5.333333333333333" there on "You entered" and press enter.
Then look the result of "Hexadecimal Representation"
The result would be 0x40aaaaab Ignore 0x,"
Hope that helps. It works but the text in the menus is too large and some text is off the screen.
So you should be able to calculate any resolution with that by dividing the width by the height.
So for 7680 x 1440 it would be :
1. Set in game res to 1920 x 1080
2. Search for 39 8E E3 3F (1920 x 1080 in hex)
3. Replace it with AB AA AA 40"
To get the correct Hex code for your resolution:
1. Set in game res to 1920 x 1080
2. Search for 39 8E E3 3F (1920 x 1080 in hex) using the Hxd Program
1. 7680/1440 = 5.3333333, Your Resolution width divided by height = Result
2. Go to :
https://www.h-schmidt.net/FloatConverter/IEEE754.html3. Enter : Your result in the "You entered" field.
4. Press Enter.
5. In the Hexadecimal Representation you will get a result eg "0x40aaaaab"
6. Remove 0x from the beginning.
7. This gives you: e.g. 40aaaaab which is 40 AA AA AB
8. REVERSE the result in 2's AB AA AA 40.
9. Replace 39 8E E3 3F with AB AA AA 40 in the HX program by pressing Ctrl + R, replace both occurances
It works.
0x40aaaaab