how to add 21:9 resolutions to Samsung 57" monitor?

[Achillez]

For some reason the Samsung 57" G9 Odyssey doesn't support 21:9 resolutions by default.

It supports 7160x2160, but not 21:9 ratios like 5120x2160,  (5120x2160, 3840x1600). 

Ironically it supports much lower 16:10, 16:9 ratios and resolutions. 

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Three part question:

1) why doesn't Samsung support these 21:9 ratios by default?  

2) Is there a way to add a formal request for Samsung to support 21:9 ratios? This monitor has been out for years and 21:9 monitors are becoming very popular. 

3) If no to (2), any ideas how to add this manually? 

[ddaniel51]

Consulting the Standard Mode Signal Table from the manual for the 57" G9 show these resolutions:

Available resolutions are dependant on the native resolution of the display.  If 21:9 resolutions are required then a proper display/screen size should be chosen at purchase to accommodate them.